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PerfMonAuditor.cpp
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1 #include "GaudiKernel/Auditor.h"
2 #include "GaudiKernel/HashMap.h"
3 #include "GaudiKernel/IIncidentListener.h"
4 #include "GaudiKernel/IIncidentSvc.h"
5 #include "GaudiKernel/IToolSvc.h"
6 #include "GaudiKernel/MsgStream.h"
7 #include "GaudiKernel/VectorMap.h"
8
9 /*BEGIN: perfmon*/
10 #include <cstring>
11 #include <fstream>
12 #include <iostream>
13 #include <map>
14 #include <perfmon/pfmlib.h>
15 #include <perfmon/pfmlib_core.h>
16 #include <perfmon/pfmlib_intel_nhm.h>
17 #include <sstream>
18 #include <string>
19 #include <utility>
20 #include <vector>
21
22 #include <perfmon/perfmon.h>
23 #include <perfmon/perfmon_dfl_smpl.h>
24
26
28
29 #include <errno.h>
30 #include <fcntl.h>
31 #include <getopt.h>
32 #include <signal.h>
33 #include <stdarg.h>
34 #include <stdint.h>
35 #include <stdio.h>
36 #include <stdlib.h>
37 #include <string.h>
38 #include <sys/mman.h>
39 #include <sys/ptrace.h>
40 #include <sys/resource.h>
41 #include <sys/time.h>
42 #include <sys/types.h>
43 #include <sys/wait.h>
44 #include <time.h>
45 #include <unistd.h>
46 #include <zlib.h>
47
48 #include "IgHook_IgHookTrace.h"
49 #include <algorithm>
50 #include <cmath>
51 #include <list>
52 #include <stack>
53 #include <sys/stat.h>
54
55 // dlopen (link with -ldl)
56 #include <dlfcn.h>
57
58 #define MAX_EVT_NAME_LEN 256
59 #define NUM_PMCS PFMLIB_MAX_PMCS
60 #define NUM_PMDS PFMLIB_MAX_PMDS
61 #define FMT_NAME PFM_DFL_SMPL_NAME
62 #define BPL ( sizeof( uint64_t ) << 3 )
63 #define LBPL 6
64
65 #define SYM_NAME_MAX_LENGTH 10000
66 #define MAX_OUTPUT_FILENAME_LENGTH 1024
67 #define MAX_EVENT_NAME_LENGTH 500
68 #define MAX_PREFIX_NAME_LENGTH 1024
69 #define FILENAME_MAX_LENGTH 1024
70
71 #define MAX_NUMBER_OF_PROGRAMMABLE_COUNTERS 4
72
73 #define cpuid( func, ax, bx, cx, dx ) \
74 __asm__ __volatile__( "cpuid" : "=a"( ax ), "=b"( bx ), "=c"( cx ), "=d"( dx ) : "a"( func ) );
75
76 static pfarg_pmd_t pd_smpl[NUM_PMDS];
77 static uint64_t collected_samples, collected_partial;
78 static int ctx_fd;
79 static pfm_dfl_smpl_hdr_t* hdr;
80 static uint64_t ovfl_count;
81 static size_t entry_size;
82 static unsigned int num_smpl_pmds;
83 static std::vector<std::map<std::string, std::map<unsigned long, unsigned int>>> samples(
84 MAX_NUMBER_OF_PROGRAMMABLE_COUNTERS ); // a map of modules each containing numbers of samples of their addresses
85 static std::vector<std::map<std::string, std::vector<unsigned long int>>>
86 results( MAX_NUMBER_OF_PROGRAMMABLE_COUNTERS ); // a map of modules and their result values across multiple events
87 static uint64_t last_overflow;
88 static uint64_t last_count;
89 static int sp[MAX_NUMBER_OF_PROGRAMMABLE_COUNTERS];
90
91 static std::stack<std::pair<INamedInterface*, std::vector<unsigned long int>>> alg_stack;
92 /*END: perfmon*/
93
94 namespace
95 {
97 template <typename T>
98 inline T function_cast( void* p )
99 {
100 union {
101 void* object;
102 T function;
103 } caster;
104 caster.object = p;
105 return caster.function;
106 }
107 class PFMon
108 {
109 public:
110 bool loaded;
111 typedef void ( *pfm_stop_t )( int );
112 pfm_stop_t pfm_stop;
113 typedef void ( *pfm_self_stop_t )( int );
114 pfm_self_stop_t pfm_self_stop;
115 typedef os_err_t ( *pfm_restart_t )( int );
116 pfm_restart_t pfm_restart;
117 typedef int ( *pfm_read_pmds_t )( int, pfarg_pmd_t*, int );
118 pfm_read_pmds_t pfm_read_pmds;
119 typedef pfm_err_t ( *pfm_initialize_t )();
120 pfm_initialize_t pfm_initialize;
121 typedef pfm_err_t ( *pfm_find_full_event_t )( const char*, pfmlib_event_t* );
122 pfm_find_full_event_t pfm_find_full_event;
123 typedef pfm_err_t ( *pfm_dispatch_events_t )( pfmlib_input_param_t*, void*, pfmlib_output_param_t*, void* );
124 pfm_dispatch_events_t pfm_dispatch_events;
125 typedef os_err_t ( *pfm_create_context_t )( pfarg_ctx_t*, char*, void*, size_t );
126 pfm_create_context_t pfm_create_context;
127 typedef os_err_t ( *pfm_write_pmcs_t )( int, pfarg_pmc_t*, int );
128 pfm_write_pmcs_t pfm_write_pmcs;
129 typedef os_err_t ( *pfm_write_pmds_t )( int, pfarg_pmd_t*, int );
130 pfm_write_pmds_t pfm_write_pmds;
131 typedef os_err_t ( *pfm_load_context_t )( int, pfarg_load_t* );
132 pfm_load_context_t pfm_load_context;
133 typedef os_err_t ( *pfm_start_t )( int fd, pfarg_start_t* );
134 pfm_start_t pfm_start;
135 typedef char* ( *pfm_strerror_t )( int );
136 pfm_strerror_t pfm_strerror;
137 typedef pfm_err_t ( *pfm_set_options_t )( pfmlib_options_t* );
138 pfm_set_options_t pfm_set_options;
139 typedef pfm_err_t ( *pfm_get_num_counters_t )( unsigned int* );
140 pfm_get_num_counters_t pfm_get_num_counters;
141 static PFMon& instance() { return s_instance; }
142
143 private:
144 // static void failure() { throw 1; }
145
146 void* handle;
147
148 PFMon()
149 {
150 handle = dlopen( "libpfm.so", RTLD_NOW );
151 if ( handle ) {
152 loaded = true;
153 } else {
154 loaded = false;
155 }
156 if ( loaded ) {
157 pfm_start = function_cast<pfm_start_t>( dlsym( handle, "pfm_start" ) );
158 pfm_stop = function_cast<pfm_stop_t>( dlsym( handle, "pfm_stop" ) );
159 pfm_self_stop = function_cast<pfm_self_stop_t>( dlsym( handle, "pfm_stop" ) ); // it's the same
160 pfm_restart = function_cast<pfm_restart_t>( dlsym( handle, "pfm_restart" ) );
161 pfm_read_pmds = function_cast<pfm_read_pmds_t>( dlsym( handle, "pfm_read_pmds" ) );
162 pfm_initialize = function_cast<pfm_initialize_t>( dlsym( handle, "pfm_initialize" ) );
163 pfm_find_full_event = function_cast<pfm_find_full_event_t>( dlsym( handle, "pfm_find_full_event" ) );
164 pfm_dispatch_events = function_cast<pfm_dispatch_events_t>( dlsym( handle, "pfm_dispatch_events" ) );
165 pfm_create_context = function_cast<pfm_create_context_t>( dlsym( handle, "pfm_create_context" ) );
166 pfm_write_pmcs = function_cast<pfm_write_pmcs_t>( dlsym( handle, "pfm_write_pmcs" ) );
167 pfm_write_pmds = function_cast<pfm_write_pmds_t>( dlsym( handle, "pfm_write_pmds" ) );
168 pfm_load_context = function_cast<pfm_load_context_t>( dlsym( handle, "pfm_load_context" ) );
169 pfm_strerror = function_cast<pfm_strerror_t>( dlsym( handle, "pfm_strerror" ) );
170 pfm_set_options = function_cast<pfm_set_options_t>( dlsym( handle, "pfm_set_options" ) );
171 pfm_get_num_counters = function_cast<pfm_get_num_counters_t>( dlsym( handle, "pfm_get_num_counters" ) );
172 } else {
173 // pfm_start = pfm_stop = pfm_self_stop = pfm_restart = pfm_read_pmds = pfm_initialize = pfm_find_full_event =
174 // pfm_dispatch_events = pfm_create_context = pfm_write_pmcs = pfm_write_pmds = pfm_load_context = pfm_strerror
175 // = pfm_set_options = pfm_get_num_counters = failure;
176 }
177 }
178 ~PFMon()
179 {
180 if ( handle ) dlclose( handle );
181 }
182
183 static PFMon s_instance;
184 };
185
186 PFMon PFMon::s_instance;
187 }
188
189 // ============================================================================
190 // GaudiAlg
191 // ============================================================================
192 // ============================================================================
202 class PerfMonAuditor : virtual public Auditor
203 {
204 public:
205 void before( StandardEventType evt, INamedInterface* alg ) override;
206 void after( StandardEventType evt, INamedInterface* alg, const StatusCode& sc ) override;
207 using Auditor::before;
208 using Auditor::after;
209
210 private:
211 void i_beforeInitialize( INamedInterface* alg );
212 void i_afterInitialize( INamedInterface* alg );
213 void i_beforeExecute( INamedInterface* alg );
214 void i_afterExecute( INamedInterface* alg );
215
216 public:
217 StatusCode initialize() override;
218 StatusCode finalize() override;
219 int is_nehalem()
220 {
221 #ifdef __ICC
222 // Disable ICC remark #593: variable "x" was set but never used
223 #pragma warning( push )
224 #pragma warning( disable : 593 )
225 #endif
226 int a, b, c, d;
227 cpuid( 1, a, b, c, d );
228 int sse4_2_mask = 1 << 20;
229 if ( c & sse4_2_mask )
230 return 1;
231 else
232 return 0;
233 #ifdef __ICC
234 #pragma warning( pop )
235 #endif
236 }
237
238 private:
239 PFMon& m_pfm;
240 /*
241 typedef void (*pfm_stop_t)(int);
242 pfm_stop_t pfm_stop;
243 typedef void (*pfm_self_stop_t)(int);
244 pfm_self_stop_t pfm_self_stop;
245
246 typedef os_err_t (*pfm_restart_t)(int);
247 pfm_restart_t pfm_restart;
248
249 //typedef int (*pfm_read_pmds_t)(int, pfarg_pmd_t*, int);
250 //pfm_read_pmds_t pfm_read_pmds;
251
252 typedef pfm_err_t (*pfm_initialize_t)();
253 pfm_initialize_t pfm_initialize;
254 typedef pfm_err_t (*pfm_find_full_event_t)(const char *, pfmlib_event_t *);
255 pfm_find_full_event_t pfm_find_full_event;
256 typedef pfm_err_t (*pfm_dispatch_events_t)(pfmlib_input_param_t *, void *, pfmlib_output_param_t *, void *);
257 pfm_dispatch_events_t pfm_dispatch_events;
258 typedef os_err_t (*pfm_create_context_t)(pfarg_ctx_t *, char *, void *, size_t);
259 pfm_create_context_t pfm_create_context;
260 typedef os_err_t (*pfm_write_pmcs_t)(int, pfarg_pmc_t *, int);
261 pfm_write_pmcs_t pfm_write_pmcs;
262 typedef os_err_t (*pfm_write_pmds_t)(int, pfarg_pmd_t *, int);
263 pfm_write_pmds_t pfm_write_pmds;
264 typedef os_err_t (*pfm_load_context_t)(int, pfarg_load_t *);
265 pfm_load_context_t pfm_load_context;
266 typedef os_err_t (*pfm_start_t)(int fd, pfarg_start_t *);
267 pfm_start_t pfm_start;
268 typedef char* (*pfm_strerror_t)(int);
269 pfm_strerror_t pfm_strerror;
270 typedef pfm_err_t (*pfm_set_options_t)(pfmlib_options_t *);
271 pfm_set_options_t pfm_set_options;
272 typedef pfm_err_t (*pfm_get_num_counters_t)(unsigned int *);
273 pfm_get_num_counters_t pfm_get_num_counters;
274 */
275
276 public:
277 PerfMonAuditor( const std::string& name, ISvcLocator* pSvc )
278 : // standard constructor
279 Auditor( name, pSvc )
280 , m_pfm( PFMon::instance() )
281 , m_map()
282 , m_indent( 0 )
283 , m_inEvent( false )
284 {
285 is_nehalem_ret = is_nehalem();
286 declareProperty( "EVENT0", event_str[0] );
287 declareProperty( "EVENT1", event_str[1] );
288 declareProperty( "EVENT2", event_str[2] );
289 declareProperty( "EVENT3", event_str[3] );
290 declareProperty( "FAMILY", family );
291 declareProperty( "PREFIX", prefix );
292 declareProperty( "INV0", inv[0] );
293 declareProperty( "INV1", inv[1] );
294 declareProperty( "INV2", inv[2] );
295 declareProperty( "INV3", inv[3] );
296 declareProperty( "CMASK0", cmask[0] );
297 declareProperty( "CMASK1", cmask[1] );
298 declareProperty( "CMASK2", cmask[2] );
299 declareProperty( "CMASK3", cmask[3] );
300 declareProperty( "SP0", sp[0] );
301 declareProperty( "SP1", sp[1] );
302 declareProperty( "SP2", sp[2] );
303 declareProperty( "SP3", sp[3] );
304 declareProperty( "SAMPLE", sampling );
305 declareProperty( "START_AT_EVENT", start_at_event );
306 declareProperty( "IS_NEHALEM", is_nehalem_ret );
307
309 /*
310 // loading functions from PFM library
311 void* handle = dlopen("libpfm.so", RTLD_NOW);
312 if (!handle) {
313 // error() << "Cannot open library: " << dlerror() << endmsg;
314 }
315 typedef void (*hello_t)();
316 hello_t hello = (hello_t) dlsym(handle, "hello");
317 if (!hello) {
318 // error() << "Cannot load symbol 'hello': " << dlerror() << endmsg;
319 dlclose(handle);
320 }
321
322 pfm_start = (pfm_start_t) dlsym(handle, "pfm_start");
323 pfm_stop = (pfm_stop_t) dlsym(handle, "pfm_stop");
324 pfm_self_stop = (pfm_self_stop_t) dlsym(handle, "pfm_stop"); //it's the same
325 pfm_restart = (pfm_restart_t) dlsym(handle, "pfm_restart");
326 //pfm_read_pmds = (pfm_read_pmds_t) dlsym(handle, "pfm_read_pmds");
327 pfm_initialize = (pfm_initialize_t) dlsym(handle, "pfm_initialize");
328 pfm_find_full_event = (pfm_find_full_event_t) dlsym(handle, "pfm_find_full_event");
329 pfm_dispatch_events = (pfm_dispatch_events_t) dlsym(handle, "pfm_dispatch_events");
330 pfm_create_context = (pfm_create_context_t) dlsym(handle, "pfm_create_context");
331 pfm_write_pmcs = (pfm_write_pmcs_t) dlsym(handle, "pfm_write_pmcs");
332 pfm_write_pmds = (pfm_write_pmds_t) dlsym(handle, "pfm_write_pmds");
333 pfm_load_context = (pfm_load_context_t) dlsym(handle, "pfm_load_context");
334 pfm_strerror = (pfm_strerror_t) dlsym(handle, "pfm_strerror");
335 pfm_set_options = (pfm_set_options_t) dlsym(handle, "pfm_set_options");
336 pfm_get_num_counters = (pfm_get_num_counters_t) dlsym(handle, "pfm_get_num_counters");
337 // use it to do the calculation
338 // info() << "Calling hello..." << endmsg;
339 // hello();
340
341 // close the library
342 // info() << "Closing library..." << endmsg;
343 dlclose(handle);
344 */
345
347 }
348
349 virtual ~PerfMonAuditor() {} // virtual destructor
350
351 private:
352 PerfMonAuditor(); // the default constructor is disabled
353 PerfMonAuditor( const PerfMonAuditor& ); // copy constructor is disabled
354 PerfMonAuditor& operator=( const PerfMonAuditor& ); // assignement operator is disabled
355
356 private:
357 typedef GaudiUtils::VectorMap<const INamedInterface*, int> Map;
358 Map m_map;
359 int m_indent; // indentation level
360 bool m_inEvent; // "In event" flag
361
362 private:
363 int is_nehalem_ret;
364
365 pfmlib_input_param_t inp;
366 pfmlib_output_param_t outp;
367 pfarg_ctx_t ctx;
368 pfarg_pmd_t pd[NUM_PMDS];
369 pfarg_pmc_t pc[NUM_PMCS];
370 pfarg_load_t load_arg;
371 int fd;
372 unsigned int i;
373 int ret;
374 void startpm();
375 void pausepm();
376 void stoppm();
377 void finalizepm();
378 std::string event_str[MAX_NUMBER_OF_PROGRAMMABLE_COUNTERS];
379 std::string prefix;
380 std::string family;
381 char event_cstr[MAX_NUMBER_OF_PROGRAMMABLE_COUNTERS][MAX_EVENT_NAME_LENGTH];
382 char prefix_cstr[MAX_PREFIX_NAME_LENGTH];
383 unsigned int ph_ev_count;
384 bool inv[MAX_NUMBER_OF_PROGRAMMABLE_COUNTERS];
385 unsigned int cmask[MAX_NUMBER_OF_PROGRAMMABLE_COUNTERS];
386 unsigned int start_at_event;
387 pfmlib_core_input_param_t params;
388 pfmlib_nhm_input_param_t nhm_params;
389 int used_counters_number;
390 bool nehalem;
391 bool westmere;
392 bool core;
393
394 bool sampling;
395 int detect_unavail_pmu_regs( int fd, pfmlib_regmask_t* r_pmcs, pfmlib_regmask_t* r_pmds );
396 int detect_unavail_pmcs( int fd, pfmlib_regmask_t* r_pmcs ) { return detect_unavail_pmu_regs( fd, r_pmcs, NULL ); }
397 void pfm_bv_set( uint64_t* bv, uint16_t rnum ) { bv[rnum >> LBPL] |= 1UL << ( rnum & ( BPL - 1 ) ); }
398 int pfm_bv_isset( uint64_t* bv, uint16_t rnum )
399 {
400 return bv[rnum >> LBPL] & ( 1UL << ( rnum & ( BPL - 1 ) ) ) ? 1 : 0;
401 }
402 void pfm_bv_copy( uint64_t* d, uint64_t* j, uint16_t n )
403 {
404 if ( n <= BPL )
405 *d = *j;
406 else {
407 memcpy( d, j, ( n >> LBPL ) * sizeof( uint64_t ) );
408 }
409 }
410 static void process_smpl_buf( pfm_dfl_smpl_hdr_t* hdr, size_t entry_size );
411 static void sigio_handler( int, struct siginfo*, struct sigcontext* ); // dlopen ==>
412 // void sigio_handler(int, struct siginfo *, struct sigcontext *);
413 void start_smpl();
414 void stop_smpl();
415 void finalize_smpl();
416 pfm_dfl_smpl_arg_t buf_arg;
417 pfarg_load_t load_args;
418 void* buf_addr;
419 unsigned num_counters;
420 unsigned int max_pmd;
421 pfmlib_options_t pfmlib_options;
422
423 int level;
424
425 bool first_alg;
426 std::string first_alg_name;
427 bool event_count_reached;
428 };
429
430 void PerfMonAuditor::startpm()
431 {
432 memset( &ctx, 0, sizeof( ctx ) );
433 memset( &inp, 0, sizeof( inp ) );
434 memset( &outp, 0, sizeof( outp ) );
435 memset( pd, 0, sizeof( pd ) );
436 memset( pc, 0, sizeof( pc ) );
437 memset( &load_arg, 0, sizeof( load_arg ) );
438 memset( &params, 0, sizeof( params ) );
439 memset( &nhm_params, 0, sizeof( nhm_params ) );
440
441 for ( int i = 0; i < used_counters_number; i++ ) {
442 ret = m_pfm.pfm_find_full_event( event_cstr[i], &inp.pfp_events[i] );
443 if ( ret != PFMLIB_SUCCESS ) {
444 error() << "ERROR: cannot find event: " << event_cstr[i] << ". Aborting..." << endmsg;
445 }
446 }
447 inp.pfp_dfl_plm = PFM_PLM3;
448 inp.pfp_event_count = 4;
449 for ( int i = 0; i < used_counters_number; i++ ) {
450 if ( inv[i] ) {
451 ( params.pfp_core_counters[i] ).flags |= PFM_CORE_SEL_INV;
452 ( nhm_params.pfp_nhm_counters[i] ).flags |= PFM_NHM_SEL_INV;
453 }
454 if ( cmask[i] > 0 ) {
455 ( params.pfp_core_counters[i] ).cnt_mask = cmask[i];
456 ( nhm_params.pfp_nhm_counters[i] ).cnt_mask = cmask[i];
457 }
458 }
459 if ( nehalem || westmere ) {
460 ret = m_pfm.pfm_dispatch_events( &inp, &nhm_params, &outp, NULL );
461 } else {
462 ret = m_pfm.pfm_dispatch_events( &inp, &params, &outp, NULL );
463 }
464 if ( ret != PFMLIB_SUCCESS ) {
465 error() << "ERROR: cannot dispatch events: " << m_pfm.pfm_strerror( ret ) << ". Aborting..." << endmsg;
466 }
467 for ( unsigned int i = 0; i < outp.pfp_pmc_count; i++ ) {
468 pc[i].reg_num = outp.pfp_pmcs[i].reg_num;
469 pc[i].reg_value = outp.pfp_pmcs[i].reg_value;
470 }
471 for ( unsigned int i = 0; i < outp.pfp_pmd_count; i++ ) {
472 pd[i].reg_num = outp.pfp_pmds[i].reg_num;
473 pd[i].reg_value = 0;
474 }
475 fd = m_pfm.pfm_create_context( &ctx, NULL, 0, 0 );
476 if ( fd == -1 ) {
477 error() << "ERROR: Context not created. Aborting..." << endmsg;
478 }
479 if ( m_pfm.pfm_write_pmcs( fd, pc, outp.pfp_pmc_count ) == -1 ) {
480 error() << "ERROR: Could not write pmcs. Aborting..." << endmsg;
481 }
482 if ( m_pfm.pfm_write_pmds( fd, pd, outp.pfp_pmd_count ) == -1 ) {
483 error() << "ERROR: Could not write pmds. Aborting..." << endmsg;
484 }
485 load_arg.load_pid = getpid();
486 if ( m_pfm.pfm_load_context( fd, &load_arg ) == -1 ) {
487 error() << "ERROR: Could not load context. Aborting..." << endmsg;
488 // error() << "Could not read pmds" << endmsg;
489 }
490
491 m_pfm.pfm_start( fd, NULL );
492 }
493
494 // stoppm()
495 // const ModuleDescription& desc : description of the module that just finished its execution (we are only interested in
496 // its name)
497 // stops the counting calling pfm_stop() and stores the counting results into the "results" map
498 void PerfMonAuditor::stoppm()
499 {
500 m_pfm.pfm_stop( fd );
501 if ( m_pfm.pfm_read_pmds( fd, pd, inp.pfp_event_count ) == -1 ) {
502 error() << "Could not read pmds" << endmsg;
503 }
504 for ( int i = 0; i < used_counters_number; i++ ) {
505 results[i][( alg_stack.top().first )->name()].push_back( alg_stack.top().second[i] + pd[i].reg_value );
506 }
507
508 close( fd );
509 }
510
511 void PerfMonAuditor::pausepm()
512 {
513 m_pfm.pfm_stop( fd );
514 if ( m_pfm.pfm_read_pmds( fd, pd, inp.pfp_event_count ) == -1 ) {
515 error() << "Could not read pmds" << endmsg;
516 }
517
518 for ( int i = 0; i < used_counters_number; i++ ) {
519 alg_stack.top().second[i] += pd[i].reg_value;
520 }
521
522 close( fd );
523 }
524
525 // finalizepm()
526 // called when all the countings of the current event are finished, it dumps the results
527 // into the output file corresponding to the event being counted
528 void PerfMonAuditor::finalizepm()
529 {
530 info() << "start of finalizepm ucn:" << used_counters_number << endmsg;
531 for ( int i = 0; i < used_counters_number; i++ ) {
532 std::string filename = prefix_cstr;
533 filename += '_';
534 filename += event_cstr[i];
535
536 for ( auto& c : filename )
537 if ( c == ':' ) c = '-';
538
539 if ( inv[i] ) filename += "_INV_1";
540 if ( cmask[i] > 0 ) filename += "_CMASK_" + std::to_string( cmask[i] );
541 filename += ".txt";
542
543 info() << "Filename:" << filename << endmsg;
544 FILE* outfile = fopen( filename.c_str(), "w" );
545 if ( nehalem ) {
546 fprintf( outfile, "NHM " );
547 } else if ( westmere ) {
548 fprintf( outfile, "WSM " );
549 } else if ( core ) {
550 fprintf( outfile, "CORE " );
551 }
552 fprintf( outfile, "%s %d %d %d\n", event_cstr[i], cmask[i], inv[i], sp[i] );
553 for ( std::map<std::string, std::vector<unsigned long int>>::iterator it = ( results[i] ).begin();
554 it != ( results[i] ).end(); it++ ) {
555 fprintf( outfile, "%s\n", ( it->first ).c_str() );
556 for ( std::vector<unsigned long int>::iterator j = ( it->second ).begin(); j != ( it->second ).end(); j++ ) {
557 fprintf( outfile, "%lu\n", *j );
558 }
559 }
560 fclose( outfile );
561 }
562 }
563
564 StatusCode PerfMonAuditor::initialize()
565 {
566 if ( !m_pfm.loaded ) {
567 error() << "pfm library could not be loaded" << endmsg;
568 return false;
569 }
570
571 info() << "Initializing..." << endmsg;
572 StatusCode sc = Auditor::initialize();
573 if ( sc.isFailure() ) {
574 return sc;
575 }
576 used_counters_number = 0;
577 for ( int i = 0; i < MAX_NUMBER_OF_PROGRAMMABLE_COUNTERS; i++ ) {
578 if ( event_str[i].length() > 0 ) used_counters_number++;
579 }
580 for ( int i = 0; i < MAX_NUMBER_OF_PROGRAMMABLE_COUNTERS; i++ ) {
581 strcpy( event_cstr[i], event_str[i].c_str() );
582 }
583 strcpy( prefix_cstr, prefix.c_str() );
584
585 if ( m_pfm.pfm_initialize() != PFMLIB_SUCCESS ) {
586 error() << "Cannot initialize perfmon!!" << endmsg;
587 }
588 ph_ev_count = 0;
589 first_alg = true;
590 event_count_reached = false;
591 nehalem = false;
592 core = false;
593 westmere = false;
594 if ( family.compare( "CORE" ) == 0 )
595 core = true;
596 else if ( family.compare( "NEHALEM" ) == 0 )
597 nehalem = true;
598 else if ( family.compare( "WESTMERE" ) == 0 )
599 westmere = true;
600 else {
601 error() << "ERROR: Unsupported processor family " << family << ". aborting..." << endmsg;
602 }
603
604 info() << "Initialized!" << endmsg;
605 return StatusCode::SUCCESS;
606 }
607
608 // process_smpl_buf()
609 // pfm_dfl_smpl_hdr_t *hdr : pointer to header of the buffer containing addresses sampled during the sampling process
610 // size_t entry_size : size of each entry, used to navigate through the various entries
611 // called when the sampling buffer is full, saves the samples into memory ("samples" map)
612 void PerfMonAuditor::process_smpl_buf( pfm_dfl_smpl_hdr_t* hdr, size_t entry_size )
613 {
615 pfm_dfl_smpl_entry_t* ent;
616 size_t pos, count;
617 uint64_t entry;
618 if ( hdr->hdr_overflows == last_overflow && hdr->hdr_count == last_count ) {
619 printf( "skipping identical set of samples...\n" );
620 return;
621 }
622 count = hdr->hdr_count;
623 ent = (pfm_dfl_smpl_entry_t*)( hdr + 1 );
624 pos = (unsigned long)ent;
625 entry = collected_samples;
626 while ( count-- ) {
627 // if(ent->ovfl_pmd>=0 && ent->ovfl_pmd<=3)
628 if ( ent->ovfl_pmd <= 3 ) {
629 ( ( samples[ent->ovfl_pmd] )[( alg_stack.top().first )->name()] )[(unsigned long)( ent->ip )]++;
630 }
631 pos += entry_size;
632 ent = (pfm_dfl_smpl_entry_t*)pos;
633 entry++;
634 }
635 collected_samples = entry;
636 last_overflow = hdr->hdr_overflows;
637 if ( last_count != hdr->hdr_count && ( last_count || last_overflow == 0 ) ) {
638 collected_partial += hdr->hdr_count;
639 }
640 last_count = hdr->hdr_count;
641 return;
642 }
643
644 // sigio_handler()
645 // int n : signal number of the signal being delivered
646 // struct siginfo *info : pointer to a siginfo_t structure containing info about the signal
647 // struct sigcontext *sc : context of the signal, NULL in our case
648 // signal handler used to catch sampling buffer overflows. When they occur it calls the process_smpl_buf() function
649 void PerfMonAuditor::sigio_handler( int /*n*/, struct siginfo* /*info*/, struct sigcontext* /*sc*/ )
650 {
651 PFMon& pfm = PFMon::instance();
652 pfarg_msg_t msg;
653 int fd = ctx_fd;
654 int r;
655 if ( fd != ctx_fd ) {
656 // error() << "ERROR: handler does not get valid file descriptor. Aborting..." << endmsg;
657 }
658 if ( pfm.pfm_read_pmds( fd, pd_smpl + 1, 1 ) == -1 ) {
659 // error() << "ERROR: pfm_read_pmds: " << strerror(errno) << ". Aborting..." << endmsg;
660 }
661 while ( true ) {
662 r = read( fd, &msg, sizeof( msg ) );
663 if ( r != sizeof( msg ) ) {
664 if ( r == -1 && errno == EINTR ) {
665 printf( "read interrupted, retrying\n" );
666 continue;
667 }
668 // error() << "ERROR: cannot read overflow message: " << strerror(errno) << ". Aborting..." << endmsg;
669 }
670 break;
671 }
672 switch ( msg.type ) {
673 case PFM_MSG_OVFL: // the sampling buffer is full
674 process_smpl_buf( hdr, entry_size );
675 ovfl_count++;
676 if ( pfm.pfm_restart( fd ) ) {
677 if ( errno != EBUSY ) {
678 // error() << "ERROR: pfm_restart error errno " << errno << ". Aborting..." << endmsg;
679 } else {
680 printf( "pfm_restart: task probably terminated \n" );
681 }
682 }
683 break;
684 default:
685 // error() << "ERROR: unknown message type " << msg.type << ". Aborting..." << endmsg;
686 break;
687 }
688 }
689
690 // start_smpl()
691 // const ModuleDescription& desc : description of the module that is just starting its execution (we are only interested
692 // in its name)
693 // initializes all the necessary structures to start the sampling, calling pfm_self_start()
694 void PerfMonAuditor::start_smpl()
695 {
696 ovfl_count = 0;
697 num_smpl_pmds = 0;
698 last_overflow = ~0;
699 max_pmd = 0;
700 memset( &pfmlib_options, 0, sizeof( pfmlib_options ) );
701 pfmlib_options.pfm_debug = 0;
702 pfmlib_options.pfm_verbose = 0;
703 m_pfm.pfm_set_options( &pfmlib_options );
704 ret = m_pfm.pfm_initialize();
705 if ( ret != PFMLIB_SUCCESS ) {
706 error() << "ERROR: Cannot initialize library: " << m_pfm.pfm_strerror( ret ) << ". Aborting..." << endmsg;
707 }
708 struct sigaction act;
709 memset( &act, 0, sizeof( act ) );
710 act.sa_handler = (sig_t)sigio_handler; // dlopen() ==>
711 // act.sa_handler = (sig_t)&sigio_handler;
712 sigaction( SIGIO, &act, 0 );
713 memset( &ctx, 0, sizeof( ctx ) );
714 memset( &buf_arg, 0, sizeof( buf_arg ) );
715 memset( &inp, 0, sizeof( inp ) );
716 memset( &outp, 0, sizeof( outp ) );
717 memset( pd_smpl, 0, sizeof( pd_smpl ) );
718 memset( pc, 0, sizeof( pc ) );
719 memset( &load_args, 0, sizeof( load_args ) );
720 m_pfm.pfm_get_num_counters( &num_counters );
721 memset( &params, 0, sizeof( params ) );
722 memset( &nhm_params, 0, sizeof( nhm_params ) );
723
724 for ( int i = 0; i < used_counters_number; i++ ) {
725 ret = m_pfm.pfm_find_full_event( event_cstr[i], &inp.pfp_events[i] );
726 if ( ret != PFMLIB_SUCCESS ) {
727 error() << "ERROR: cannot find event: " << event_cstr[i] << ". Aborting..." << endmsg;
728 }
729 }
730 inp.pfp_dfl_plm = PFM_PLM3;
731 inp.pfp_event_count = 4;
732 for ( int i = 0; i < used_counters_number; i++ ) {
733 if ( inv[i] ) {
734 ( params.pfp_core_counters[i] ).flags |= PFM_CORE_SEL_INV;
735 ( nhm_params.pfp_nhm_counters[i] ).flags |= PFM_NHM_SEL_INV;
736 }
737 if ( cmask[i] > 0 ) {
738 ( params.pfp_core_counters[i] ).cnt_mask = cmask[i];
739 ( nhm_params.pfp_nhm_counters[i] ).cnt_mask = cmask[i];
740 }
741 }
742 if ( nehalem || westmere ) {
743 ret = m_pfm.pfm_dispatch_events( &inp, &nhm_params, &outp, NULL );
744 } else {
745 ret = m_pfm.pfm_dispatch_events( &inp, &params, &outp, NULL );
746 }
747 if ( ret != PFMLIB_SUCCESS ) {
748 error() << "ERROR: cannot configure events: " << m_pfm.pfm_strerror( ret ) << ". Aborting..." << endmsg;
749 }
750 for ( unsigned int i = 0; i < outp.pfp_pmc_count; i++ ) {
751 pc[i].reg_num = outp.pfp_pmcs[i].reg_num;
752 pc[i].reg_value = outp.pfp_pmcs[i].reg_value;
753 }
754 for ( unsigned int i = 0; i < outp.pfp_pmd_count; i++ ) {
755 pd_smpl[i].reg_num = outp.pfp_pmds[i].reg_num;
756 if ( i ) {
757 pfm_bv_set( pd_smpl[0].reg_smpl_pmds, pd_smpl[i].reg_num );
758 if ( pd_smpl[i].reg_num > max_pmd ) {
759 max_pmd = pd_smpl[i].reg_num;
760 }
761 num_smpl_pmds++;
762 }
763 }
764 for ( int i = 0; i < used_counters_number; i++ ) {
765 pd_smpl[i].reg_flags |= PFM_REGFL_OVFL_NOTIFY | PFM_REGFL_RANDOM;
766 pfm_bv_copy( pd_smpl[i].reg_reset_pmds, pd_smpl[i].reg_smpl_pmds, max_pmd );
767 pd_smpl[i].reg_value = ( uint64_t )( sp[i] * -1 );
768 pd_smpl[i].reg_short_reset = ( uint64_t )( sp[i] * -1 );
769 pd_smpl[i].reg_long_reset = ( uint64_t )( sp[i] * -1 );
770 pd_smpl[i].reg_random_seed = 5; // tocheck
771 pd_smpl[i].reg_random_mask = 0xff; // tocheck
772 }
773 entry_size = sizeof( pfm_dfl_smpl_entry_t ) + ( num_smpl_pmds << 3 );
774 ctx.ctx_flags = 0;
775 buf_arg.buf_size = 3 * getpagesize() + 512;
776 ctx_fd = m_pfm.pfm_create_context( &ctx, (char*)FMT_NAME, &buf_arg, sizeof( buf_arg ) );
777 if ( ctx_fd == -1 ) {
778 if ( errno == ENOSYS ) {
779 error() << "ERROR: Your kernel does not have performance monitoring support! Aborting..." << endmsg;
780 }
781 error() << "ERROR: Can't create PFM context " << strerror( errno ) << ". Aborting..." << endmsg;
782 }
783 buf_addr = mmap( NULL, (size_t)buf_arg.buf_size, PROT_READ, MAP_PRIVATE, ctx_fd, 0 );
784 if ( buf_addr == MAP_FAILED ) {
785 error() << "ERROR: cannot mmap sampling buffer: " << strerror( errno ) << ". Aborting..." << endmsg;
786 }
787 hdr = (pfm_dfl_smpl_hdr_t*)buf_addr;
788 if ( PFM_VERSION_MAJOR( hdr->hdr_version ) < 1 ) {
789 error() << "ERROR: invalid buffer format version. Aborting..." << endmsg;
790 }
791 if ( m_pfm.pfm_write_pmcs( ctx_fd, pc, outp.pfp_pmc_count ) ) {
792 error() << "ERROR: pfm_write_pmcs error errno " << strerror( errno ) << ". Aborting..." << endmsg;
793 }
794 if ( m_pfm.pfm_write_pmds( ctx_fd, pd_smpl, outp.pfp_pmd_count ) ) {
795 error() << "ERROR: pfm_write_pmds error errno " << strerror( errno ) << ". Aborting..." << endmsg;
796 }
797 load_args.load_pid = getpid();
798 if ( m_pfm.pfm_load_context( ctx_fd, &load_args ) ) {
799 error() << "ERROR: pfm_load_context error errno " << strerror( errno ) << ". Aborting..." << endmsg;
800 }
801 ret = fcntl( ctx_fd, F_SETFL, fcntl( ctx_fd, F_GETFL, 0 ) | O_ASYNC );
802 if ( ret == -1 ) {
803 error() << "ERROR: cannot set ASYNC: " << strerror( errno ) << ". Aborting..." << endmsg;
804 }
805 ret = fcntl( ctx_fd, F_SETOWN, getpid() );
806 if ( ret == -1 ) {
807 error() << "ERROR: cannot setown: " << strerror( errno ) << ". Aborting..." << endmsg;
808 }
809 // pfm_self_start(ctx_fd); ==>
810 m_pfm.pfm_start( ctx_fd, NULL );
811 }
812
813 // stop_smpl()
814 // const ModuleDescription& desc : description of the module that just finished its execution (we are only interested in
815 // its name)
816 // stops the sampling and calls process_smpl_buf() one last time to process all the remaining samples
817 void PerfMonAuditor::stop_smpl()
818 {
819 m_pfm.pfm_self_stop( ctx_fd );
820 process_smpl_buf( hdr, entry_size );
821 close( ctx_fd );
822 ret = munmap( hdr, (size_t)buf_arg.buf_size );
823 if ( ret ) {
824 error() << "Cannot unmap buffer: %s" << strerror( errno ) << endmsg;
825 }
826 return;
827 }
828
829 // finalize_smpl()
830 // processes the sampling results in order to find library and offset of each sampled address, using the symbol() and
831 // tosymbol() functions,
832 // and then dumps the new found information into gzipped output files, to be processed later
833 void PerfMonAuditor::finalize_smpl()
834 {
835 int err;
836 for ( int i = 0; i < used_counters_number; i++ ) {
837 std::string filename = prefix_cstr;
838 filename += '_';
839 filename += event_cstr[i];
840
841 for ( auto& c : filename )
842 if ( c == ':' ) c = '-';
843
844 if ( inv[i] ) filename += "_INV_1";
845 if ( cmask[i] > 0 ) filename += "_CMASK_" + std::to_string( cmask[i] );
846 filename += ".txt.gz";
847
848 gzFile outfile = gzopen( filename.c_str(), "wb" );
849 if ( outfile != NULL ) {
850 if ( nehalem ) {
851 gzprintf( outfile, "NHM " );
852 } else if ( westmere ) {
853 gzprintf( outfile, "WSM " );
854 } else if ( core ) {
855 gzprintf( outfile, "CORE " );
856 }
857 if ( gzprintf( outfile, "%s %d %d %d\n", event_cstr[i], cmask[i], inv[i], sp[i] ) <
858 (int)strlen( event_cstr[i] ) ) {
859 error() << "ERROR: gzputs err: " << gzerror( outfile, &err ) << ". Aborting..." << endmsg;
860 }
861 for ( std::map<std::string, std::map<unsigned long, unsigned int>>::iterator it = samples[i].begin();
862 it != samples[i].end(); it++ ) {
863 unsigned long long sum = 0;
864 for ( std::map<unsigned long, unsigned int>::iterator jt = ( it->second ).begin(); jt != ( it->second ).end();
865 jt++ ) {
866 sum += jt->second;
867 }
868 if ( gzprintf( outfile, "%s%%%llu\n", ( it->first ).c_str(), sum ) < (int)( ( it->first ).length() ) ) {
869 error() << "ERROR: gzputs err: " << gzerror( outfile, &err ) << ". Aborting..." << endmsg;
870 }
871 for ( std::map<unsigned long, unsigned int>::iterator jt = ( it->second ).begin(); jt != ( it->second ).end();
872 jt++ ) {
873 char sym_name[SYM_NAME_MAX_LENGTH];
874 bzero( sym_name, SYM_NAME_MAX_LENGTH );
875 const char* libName;
876 const char* symbolName;
877 int libOffset = 0;
878 int offset = 0;
879 void* sym_addr = IgHookTrace::tosymbol( (void*)( jt->first ) );
880 if ( sym_addr != NULL ) {
881 bool success = IgHookTrace::symbol( sym_addr, symbolName, libName, offset, libOffset );
882 if ( success ) {
883 if ( symbolName != NULL && strlen( symbolName ) > 0 ) {
884 strcpy( sym_name, symbolName );
885 strcat( sym_name, " " );
886 } else {
887 strcpy( sym_name, "??? " );
888 }
889 if ( libName != NULL && strlen( libName ) > 0 ) {
890 strcat( sym_name, libName );
891 strcat( sym_name, " " );
892 } else {
893 strcat( sym_name, "??? " );
894 }
895 sprintf( sym_name, "%s%d ", sym_name, libOffset );
896 if ( strlen( sym_name ) <= 0 ) {
897 error() << "ERROR: Symbol name length is zero. Aborting..." << endmsg;
898 }
899 } else {
900 strcpy( sym_name, "??? ??? 0 " );
901 }
902 } else {
903 strcpy( sym_name, "??? ??? 0 " );
904 }
905 if ( gzprintf( outfile, "%s %d\n", sym_name, jt->second ) < (int)strlen( sym_name ) ) {
906 error() << "ERROR: gzputs err: " << gzerror( outfile, &err ) << endmsg;
907 }
908 }
909 }
910 } else {
911 error() << "ERROR: Could not open file: " << filename << ". Aborting..." << endmsg;
912 }
913 gzclose( outfile );
914 }
915 }
916
917 StatusCode PerfMonAuditor::finalize()
918 {
919 if ( sampling == 0 )
920 finalizepm();
921 else
922 finalize_smpl();
923 return Auditor::finalize();
924 }
925
926 void PerfMonAuditor::before( StandardEventType evt, INamedInterface* alg )
927 {
928 switch ( evt ) {
929 case IAuditor::Initialize:
930 i_beforeInitialize( alg );
931 break;
932 case IAuditor::Execute:
933 i_beforeExecute( alg );
934 break;
935 default:
936 break;
937 }
938 return;
939 }
940
941 void PerfMonAuditor::after( StandardEventType evt, INamedInterface* alg, const StatusCode& )
942 {
943 switch ( evt ) {
944 case IAuditor::Initialize:
945 i_afterInitialize( alg );
946 break;
947 case IAuditor::Execute:
948 i_afterExecute( alg );
949 break;
950 default:
951 break;
952 }
953 return;
954 }
955
956 void PerfMonAuditor::i_beforeInitialize( INamedInterface* alg )
957 {
958 if ( !alg ) return;
959 return;
960 }
961
962 void PerfMonAuditor::i_afterInitialize( INamedInterface* alg )
963 {
964 if ( !alg ) return;
965 return;
966 }
967
968 void PerfMonAuditor::i_beforeExecute( INamedInterface* alg )
969 {
970 if ( !alg ) return;
971 // info() << "before:inside! " << alg->name() << endmsg;
972 if ( first_alg ) {
973 first_alg = false;
974 first_alg_name = alg->name();
975 // info() << "first_alg_name= " << alg->name() << endmsg;
976 }
977 if ( !event_count_reached ) {
978 if ( !first_alg_name.compare( alg->name() ) ) {
979 ph_ev_count++;
980 // info() << "EVENT COUNT: " << ph_ev_count << endmsg;
981 if ( ph_ev_count == start_at_event ) {
982 event_count_reached = true;
983 // info() << "!!! EVENT COUNT REACHED: " << ph_ev_count << endmsg;
984 }
985 }
986 }
987 if ( event_count_reached ) {
988 // info() << "before:inside! " << alg->name() << endmsg;
989
990 if ( !alg_stack.empty() ) {
991 if ( sampling == 0 )
992 pausepm(); // pausing father algorithm counting
993 else
994 stop_smpl();
995 }
996 ++m_indent;
997 std::vector<unsigned long int> zeroes( 4, 0 );
998 alg_stack.push( std::make_pair( alg, zeroes ) );
999 if ( sampling == 0 )
1000 startpm();
1001 else
1002 start_smpl();
1003 }
1004 }
1005
1006 void PerfMonAuditor::i_afterExecute( INamedInterface* alg )
1007 {
1008 if ( !alg ) {
1009 return;
1010 } // info() << "after:inside! " << alg->name() << endmsg;
1011
1012 if ( event_count_reached ) {
1013 // info() << "after:inside! " << alg->name() << endmsg;
1014
1015 if ( sampling == 0 )
1016 stoppm();
1017 else
1018 stop_smpl();
1019 alg_stack.pop();
1020 --m_indent;
1021 if ( !alg_stack.empty() ) {
1022 if ( sampling == 0 )
1023 startpm();
1024 else
1025 start_smpl(); // resuming father algorithm counting
1026 }
1027 }
1028 }
1029
1030 DECLARE_COMPONENT( PerfMonAuditor )
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Definition: pfmlib.h:136
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Performance Monitoring Auditor that uses Perfmon2 library to monitor algorithms.
Definition: PerfMonAuditor.cpp:202
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Test for a status code of FAILURE.
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Definition: reverse.h:58
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Definition: perfmon_dfl_smpl.h:47
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Definition: StatusCode.h:26
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Declare a property (templated)
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Definition: PerfMonAuditor.cpp:366
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Definition: PerfMonAuditor.cpp:498
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Definition: PerfMonAuditor.cpp:358
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Definition: PerfMonAuditor.cpp:389
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Definition: IgHook_IgHookTrace.cpp:226
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Definition: PerfMonAuditor.cpp:528
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end
auto end(reverse_wrapper< T > &w)
Definition: reverse.h:64
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Definition: PerfMonAuditor.cpp:359
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Definition: gaudirun.py:268
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Definition: perfmon_v2.h:38
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Definition: pfmlib.h:125
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Definition: PerfMonAuditor.cpp:941
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Definition: pfmlib_intel_nhm.h:138
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Definition: PerfMonAuditor.cpp:62
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Definition: PerfMonAuditor.cpp:372
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Definition: PerfMonAuditor.cpp:367
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Definition: INamedInterface.h:15
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Definition: PerfMonAuditor.cpp:383
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Definition: PerfMonAuditor.cpp:398
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Definition: PerfMonAuditor.cpp:427
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Definition: PerfMonAuditor.cpp:61
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Definition: PerfMonAuditor.cpp:694
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Definition: PerfMonAuditor.cpp:386
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Definition: PerfMonAuditor.cpp:612
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Definition: PerfMonAuditor.cpp:373
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Definition: PerfMonAuditor.cpp:394
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Definition: IAuditor.h:25
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Definition: perfmon.h:205
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Definition: FdsRegistry.py:8
PFM_REGFL_RANDOM
#define PFM_REGFL_RANDOM
Definition: perfmon.h:113
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Definition: PerfMonAuditor.cpp:419
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Definition: PerfMonAuditor.cpp:416
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Definition: perfmon_v2.h:58
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os_err_t pfm_read_pmds(int fd, pfarg_pmd_t *pmds, int count)
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Definition: PerfMonAuditor.cpp:420
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Definition: PerfMonAuditor.cpp:391
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Definition: perfmon_v2.h:50
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Definition: PerfMonAuditor.cpp:564
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Definition: perfmon_dfl_smpl.h:48
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Definition: PerfMonAuditor.cpp:968
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virtual StatusCode initialize()
Definition: Auditor.cpp:70
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Definition: PerfMonAuditor.cpp:425
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Definition: PerfMonAuditor.cpp:71
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Definition: PerfMonAuditor.cpp:360
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Definition: perfmon_dfl_smpl.h:53
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Definition: PerfMonAuditor.cpp:962
PerfMonAuditor::i_beforeInitialize
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Definition: PerfMonAuditor.cpp:956
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Definition: PerfMonAuditor.cpp:371
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PerfMonAuditor::load_arg
pfarg_load_t load_arg
Definition: PerfMonAuditor.cpp:370
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#define PFM_MSG_OVFL
Definition: perfmon.h:210
pfm_stop
os_err_t pfm_stop(int fd)
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Definition: PerfMonAuditor.cpp:239
Auditor.h
PerfMonAuditor::~PerfMonAuditor
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Definition: PerfMonAuditor.cpp:349
Auditor::before
void before(StandardEventType, INamedInterface *) override
The following methods are meant to be implemented by the child class...
Definition: Auditor.cpp:73
pfarg_pmd_t::reg_value
uint64_t reg_value
Definition: perfmon_v2.h:42
endmsg
MsgStream & endmsg(MsgStream &s)
MsgStream Modifier: endmsg. Calls the output method of the MsgStream.
Definition: MsgStream.h:209
INamedInterface::name
virtual const std::string & name() const =0
Retrieve the name of the instance.
PerfMonAuditor::before
void before(StandardEventType evt, INamedInterface *alg) override
Definition: PerfMonAuditor.cpp:926
IOTest.evt
evt
Definition: IOTest.py:96
pfm_set_options
pfm_err_t pfm_set_options(pfmlib_options_t *opt)
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Definition: PerfMonAuditor.cpp:390
PerfMonAuditor::core
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Definition: PerfMonAuditor.cpp:392
Auditor
Base class from which all concrete auditor classes should be derived.
Definition: Auditor.h:35