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comparison VMS.c @ 108:3bc3b89630c7

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perf counters
author engelhardt@cray1
date Tue, 26 Jul 2011 15:36:24 +0200
parents 97e26095c01f
children 659299627e70
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43:ccd9e7a56902 49:626b11cad78c
14 #include "VMS.h" 14 #include "VMS.h"
15 #include "ProcrContext.h" 15 #include "ProcrContext.h"
16 #include "Queue_impl/BlockingQueue.h" 16 #include "Queue_impl/BlockingQueue.h"
17 #include "Histogram/Histogram.h" 17 #include "Histogram/Histogram.h"
18 18
19 #include <linux/perf_event.h>
20 #include <syscall.h>
21 #include <sys/prctl.h>
19 22
20 #define thdAttrs NULL 23 #define thdAttrs NULL
21 24
22 //=========================================================================== 25 //===========================================================================
23 void 26 void
175 _VMSMasterEnv->masterLockHighTimeHist = makeFixedBinHist( 50, 0, 100, 178 _VMSMasterEnv->masterLockHighTimeHist = makeFixedBinHist( 50, 0, 100,
176 "master lock high time hist"); 179 "master lock high time hist");
177 #endif 180 #endif
178 181
179 MakeTheMeasHists(); 182 MakeTheMeasHists();
183
184 #ifdef MEAS__PERF_COUNTER
185 printf("Creating HW counters...");
186 struct perf_event_attr hw_event;
187 hw_event.type = PERF_TYPE_HARDWARE;
188 hw_event.size = sizeof(struct perf_event_attr);
189 hw_event.disabled = 1;
190 hw_event.inherit = 1; /* children inherit it */
191 hw_event.pinned = 1; /* must always be on PMU */
192 hw_event.exclusive = 0; /* only group on PMU */
193 hw_event.exclude_user = 0; /* don't count user */
194 hw_event.exclude_kernel = 1; /* ditto kernel */
195 hw_event.exclude_hv = 1; /* ditto hypervisor */
196 hw_event.exclude_idle = 0; /* don't count when idle */
197 hw_event.mmap = 0; /* include mmap data */
198 hw_event.comm = 0; /* include comm data */
199
200 for( coreIdx = 0; coreIdx < NUM_CORES; coreIdx++ )
201 {
202 hw_event.config = PERF_COUNT_HW_CPU_CYCLES; //cycles
203 _VMSMasterEnv->cycles_counter_fd[coreIdx] = syscall(__NR_perf_event_open, &hw_event,
204 0,//pid_t pid,
205 coreIdx,//int cpu,
206 -1,//int group_fd,
207 0//unsigned long flags
208 );
209 hw_event.config = PERF_COUNT_HW_INSTRUCTIONS; //instrs
210 _VMSMasterEnv->instrs_counter_fd[coreIdx] = syscall(__NR_perf_event_open, &hw_event,
211 0,//pid_t pid,
212 coreIdx,//int cpu,
213 -1,//int group_fd,
214 0//unsigned long flags
215 );
216 }
217 prctl(PR_TASK_PERF_EVENTS_ENABLE);
218 #endif
219
180 //======================================================================== 220 //========================================================================
181 221
182 } 222 }
183 223
184 SchedSlot ** 224 SchedSlot **