/* ----------------------------------------------------------------------------- * * (c) The GHC Team, 1998-2005 * * Statistics and timing-related functions. * * ---------------------------------------------------------------------------*/ #include "PosixSource.h" #include "Rts.h" #include "RtsFlags.h" #include "RtsUtils.h" #include "Schedule.h" #include "Stats.h" #include "Profiling.h" #include "GetTime.h" #include "sm/Storage.h" #include "sm/GC.h" // gc_alloc_block_sync, whitehole_spin #include "sm/GCThread.h" #include "sm/BlockAlloc.h" #if USE_PAPI #include "Papi.h" #endif /* huh? */ #define BIG_STRING_LEN 512 #define TimeToSecondsDbl(t) ((double)(t) / TIME_RESOLUTION) static Time start_init_cpu, start_init_elapsed, end_init_cpu, end_init_elapsed, start_exit_cpu, start_exit_elapsed, end_exit_cpu, end_exit_elapsed; static Time GC_tot_cpu = 0; static StgWord64 GC_tot_alloc = 0; static StgWord64 GC_tot_copied = 0; static StgWord64 GC_par_max_copied = 0; static StgWord64 GC_par_tot_copied = 0; #ifdef PROFILING static Time RP_start_time = 0, RP_tot_time = 0; // retainer prof user time static Time RPe_start_time = 0, RPe_tot_time = 0; // retainer prof elap time static Time HC_start_time, HC_tot_time = 0; // heap census prof user time static Time HCe_start_time, HCe_tot_time = 0; // heap census prof elap time #endif #ifdef PROFILING #define PROF_VAL(x) (x) #else #define PROF_VAL(x) 0 #endif // current = current as of last GC static W_ current_residency = 0; // in words; for stats only static W_ max_residency = 0; static W_ cumulative_residency = 0; static W_ residency_samples = 0; // for stats only static W_ current_slop = 0; static W_ max_slop = 0; static W_ GC_end_faults = 0; static Time *GC_coll_cpu = NULL; static Time *GC_coll_elapsed = NULL; static Time *GC_coll_max_pause = NULL; static void statsFlush( void ); static void statsClose( void ); /* ----------------------------------------------------------------------------- Current elapsed time ------------------------------------------------------------------------- */ Time stat_getElapsedTime(void) { return getProcessElapsedTime() - start_init_elapsed; } /* --------------------------------------------------------------------------- Measure the current MUT time, for profiling ------------------------------------------------------------------------ */ double mut_user_time_until( Time t ) { return TimeToSecondsDbl(t - GC_tot_cpu); // heapCensus() time is included in GC_tot_cpu, so we don't need // to subtract it here. } double mut_user_time( void ) { Time cpu; cpu = getProcessCPUTime(); return mut_user_time_until(cpu); } #ifdef PROFILING /* mut_user_time_during_RP() returns the MUT time during retainer profiling. The same is for mut_user_time_during_HC(); */ double mut_user_time_during_RP( void ) { return TimeToSecondsDbl(RP_start_time - GC_tot_cpu - RP_tot_time); } double mut_user_time_during_heap_census( void ) { return TimeToSecondsDbl(HC_start_time - GC_tot_cpu - RP_tot_time); } #endif /* PROFILING */ /* --------------------------------------------------------------------------- initStats0() has no dependencies, it can be called right at the beginning ------------------------------------------------------------------------ */ void initStats0(void) { start_init_cpu = 0; start_init_elapsed = 0; end_init_cpu = 0; end_init_elapsed = 0; start_exit_cpu = 0; start_exit_elapsed = 0; end_exit_cpu = 0; end_exit_elapsed = 0; GC_tot_alloc = 0; GC_tot_copied = 0; GC_par_max_copied = 0; GC_par_tot_copied = 0; GC_tot_cpu = 0; #ifdef PROFILING RP_start_time = 0; RP_tot_time = 0; RPe_start_time = 0; RPe_tot_time = 0; HC_start_time = 0; HC_tot_time = 0; HCe_start_time = 0; HCe_tot_time = 0; #endif max_residency = 0; cumulative_residency = 0; residency_samples = 0; max_slop = 0; GC_end_faults = 0; } /* --------------------------------------------------------------------------- initStats1() can be called after setupRtsFlags() ------------------------------------------------------------------------ */ void initStats1 (void) { nat i; if (RtsFlags.GcFlags.giveStats >= VERBOSE_GC_STATS) { statsPrintf(" Alloc Copied Live GC GC TOT TOT Page Flts\n"); statsPrintf(" bytes bytes bytes user elap user elap\n"); } GC_coll_cpu = (Time *)stgMallocBytes( sizeof(Time)*RtsFlags.GcFlags.generations, "initStats"); GC_coll_elapsed = (Time *)stgMallocBytes( sizeof(Time)*RtsFlags.GcFlags.generations, "initStats"); GC_coll_max_pause = (Time *)stgMallocBytes( sizeof(Time)*RtsFlags.GcFlags.generations, "initStats"); for (i = 0; i < RtsFlags.GcFlags.generations; i++) { GC_coll_cpu[i] = 0; GC_coll_elapsed[i] = 0; GC_coll_max_pause[i] = 0; } } /* ----------------------------------------------------------------------------- Initialisation time... -------------------------------------------------------------------------- */ void stat_startInit(void) { getProcessTimes(&start_init_cpu, &start_init_elapsed); } void stat_endInit(void) { getProcessTimes(&end_init_cpu, &end_init_elapsed); #if USE_PAPI /* We start counting events for the mutator * when garbage collection starts * we switch to the GC event set. */ papi_start_mutator_count(); /* This flag is needed to avoid counting the last GC */ papi_is_reporting = 1; #endif } /* ----------------------------------------------------------------------------- stat_startExit and stat_endExit These two measure the time taken in shutdownHaskell(). -------------------------------------------------------------------------- */ void stat_startExit(void) { getProcessTimes(&start_exit_cpu, &start_exit_elapsed); #if USE_PAPI /* We stop counting mutator events * GC events are not being counted at this point */ papi_stop_mutator_count(); /* This flag is needed, because GC is run once more after this function */ papi_is_reporting = 0; #endif } void stat_endExit(void) { getProcessTimes(&end_exit_cpu, &end_exit_elapsed); } void stat_startGCSync (gc_thread *gct) { gct->gc_sync_start_elapsed = getProcessElapsedTime(); } /* ----------------------------------------------------------------------------- Called at the beginning of each GC -------------------------------------------------------------------------- */ static nat rub_bell = 0; void stat_startGC (Capability *cap, gc_thread *gct) { nat bell = RtsFlags.GcFlags.ringBell; if (bell) { if (bell > 1) { debugBelch(" GC "); rub_bell = 1; } else { debugBelch("\007"); } } #if USE_PAPI if(papi_is_reporting) { /* Switch to counting GC events */ papi_stop_mutator_count(); papi_start_gc_count(); } #endif getProcessTimes(&gct->gc_start_cpu, &gct->gc_start_elapsed); // Post EVENT_GC_START with the same timestamp as used for stats // (though converted from Time=StgInt64 to EventTimestamp=StgWord64). // Here, as opposed to other places, the event is emitted on the cap // that initiates the GC and external tools expect it to have the same // timestamp as used in +RTS -s calculcations. traceEventGcStartAtT(cap, TimeToNS(gct->gc_start_elapsed - start_init_elapsed)); if (RtsFlags.GcFlags.giveStats != NO_GC_STATS) { gct->gc_start_faults = getPageFaults(); } updateNurseriesStats(); } /* ----------------------------------------------------------------------------- Called at the end of each GC -------------------------------------------------------------------------- */ void stat_endGC (Capability *cap, gc_thread *gct, W_ live, W_ copied, W_ slop, nat gen, nat par_n_threads, W_ par_max_copied, W_ par_tot_copied) { W_ tot_alloc; W_ alloc; if (RtsFlags.GcFlags.giveStats != NO_GC_STATS || rtsConfig.gcDoneHook != NULL || RtsFlags.ProfFlags.doHeapProfile) // heap profiling needs GC_tot_time { Time cpu, elapsed, gc_cpu, gc_elapsed, gc_sync_elapsed; // Has to be emitted while all caps stopped for GC, but before GC_END. // See trac.haskell.org/ThreadScope/wiki/RTSsummaryEvents // for a detailed design rationale of the current setup // of GC eventlog events. traceEventGcGlobalSync(cap); // Emitted before GC_END on all caps, which simplifies tools code. traceEventGcStats(cap, CAPSET_HEAP_DEFAULT, gen, copied * sizeof(W_), slop * sizeof(W_), /* current loss due to fragmentation */ (mblocks_allocated * BLOCKS_PER_MBLOCK - n_alloc_blocks) * BLOCK_SIZE_W * sizeof(W_), par_n_threads, par_max_copied * sizeof(W_), par_tot_copied * sizeof(W_)); getProcessTimes(&cpu, &elapsed); // Post EVENT_GC_END with the same timestamp as used for stats // (though converted from Time=StgInt64 to EventTimestamp=StgWord64). // Here, as opposed to other places, the event is emitted on the cap // that initiates the GC and external tools expect it to have the same // timestamp as used in +RTS -s calculcations. traceEventGcEndAtT(cap, TimeToNS(elapsed - start_init_elapsed)); gc_sync_elapsed = gct->gc_start_elapsed - gct->gc_sync_start_elapsed; gc_elapsed = elapsed - gct->gc_start_elapsed; gc_cpu = cpu - gct->gc_start_cpu; /* For the moment we calculate both per-HEC and total allocation. * There is thus redundancy here, but for the moment we will calculate * it both the old and new way and assert they're the same. * When we're sure it's working OK then we can simplify things. */ tot_alloc = calcTotalAllocated(); // allocated since the last GC alloc = tot_alloc - GC_tot_alloc; GC_tot_alloc = tot_alloc; if (RtsFlags.GcFlags.giveStats == VERBOSE_GC_STATS) { W_ faults = getPageFaults(); statsPrintf("%9" FMT_SizeT " %9" FMT_SizeT " %9" FMT_SizeT, alloc*sizeof(W_), copied*sizeof(W_), live*sizeof(W_)); statsPrintf(" %6.3f %6.3f %8.3f %8.3f %4" FMT_Word " %4" FMT_Word " (Gen: %2d)\n", TimeToSecondsDbl(gc_cpu), TimeToSecondsDbl(gc_elapsed), TimeToSecondsDbl(cpu), TimeToSecondsDbl(elapsed - start_init_elapsed), faults - gct->gc_start_faults, gct->gc_start_faults - GC_end_faults, gen); GC_end_faults = faults; statsFlush(); } if (rtsConfig.gcDoneHook != NULL) { rtsConfig.gcDoneHook(gen, alloc*sizeof(W_), live*sizeof(W_), copied*sizeof(W_), par_max_copied * sizeof(W_), mblocks_allocated * BLOCKS_PER_MBLOCK * BLOCK_SIZE_W * sizeof(W_), slop * sizeof(W_), TimeToNS(gc_sync_elapsed), TimeToNS(gc_elapsed), TimeToNS(gc_cpu)); } GC_coll_cpu[gen] += gc_cpu; GC_coll_elapsed[gen] += gc_elapsed; if (GC_coll_max_pause[gen] < gc_elapsed) { GC_coll_max_pause[gen] = gc_elapsed; } GC_tot_copied += (StgWord64) copied; GC_par_max_copied += (StgWord64) par_max_copied; GC_par_tot_copied += (StgWord64) par_tot_copied; GC_tot_cpu += gc_cpu; traceEventHeapSize(cap, CAPSET_HEAP_DEFAULT, mblocks_allocated * MBLOCK_SIZE_W * sizeof(W_)); if (gen == RtsFlags.GcFlags.generations-1) { /* major GC? */ if (live > max_residency) { max_residency = live; } current_residency = live; residency_samples++; cumulative_residency += live; traceEventHeapLive(cap, CAPSET_HEAP_DEFAULT, live * sizeof(W_)); } if (slop > max_slop) max_slop = slop; } if (rub_bell) { debugBelch("\b\b\b \b\b\b"); rub_bell = 0; } #if USE_PAPI if(papi_is_reporting) { /* Switch to counting mutator events */ if (gen == 0) { papi_stop_gc0_count(); } else { papi_stop_gc1_count(); } papi_start_mutator_count(); } #endif } /* ----------------------------------------------------------------------------- Called at the beginning of each Retainer Profiliing -------------------------------------------------------------------------- */ #ifdef PROFILING void stat_startRP(void) { Time user, elapsed; getProcessTimes( &user, &elapsed ); RP_start_time = user; RPe_start_time = elapsed; } #endif /* PROFILING */ /* ----------------------------------------------------------------------------- Called at the end of each Retainer Profiliing -------------------------------------------------------------------------- */ #ifdef PROFILING void stat_endRP( nat retainerGeneration, #ifdef DEBUG_RETAINER nat maxCStackSize, int maxStackSize, #endif double averageNumVisit) { Time user, elapsed; getProcessTimes( &user, &elapsed ); RP_tot_time += user - RP_start_time; RPe_tot_time += elapsed - RPe_start_time; fprintf(prof_file, "Retainer Profiling: %d, at %f seconds\n", retainerGeneration, mut_user_time_during_RP()); #ifdef DEBUG_RETAINER fprintf(prof_file, "\tMax C stack size = %u\n", maxCStackSize); fprintf(prof_file, "\tMax auxiliary stack size = %u\n", maxStackSize); #endif fprintf(prof_file, "\tAverage number of visits per object = %f\n", averageNumVisit); } #endif /* PROFILING */ /* ----------------------------------------------------------------------------- Called at the beginning of each heap census -------------------------------------------------------------------------- */ #ifdef PROFILING void stat_startHeapCensus(void) { Time user, elapsed; getProcessTimes( &user, &elapsed ); HC_start_time = user; HCe_start_time = elapsed; } #endif /* PROFILING */ /* ----------------------------------------------------------------------------- Called at the end of each heap census -------------------------------------------------------------------------- */ #ifdef PROFILING void stat_endHeapCensus(void) { Time user, elapsed; getProcessTimes( &user, &elapsed ); HC_tot_time += user - HC_start_time; HCe_tot_time += elapsed - HCe_start_time; } #endif /* PROFILING */ /* ----------------------------------------------------------------------------- Called at the end of execution NOTE: number of allocations is not entirely accurate: it doesn't take into account the few bytes at the end of the heap that were left unused when the heap-check failed. -------------------------------------------------------------------------- */ #ifdef DEBUG #define TICK_VAR_INI(arity) \ StgInt SLOW_CALLS_##arity = 1; \ StgInt RIGHT_ARITY_##arity = 1; \ StgInt TAGGED_PTR_##arity = 0; TICK_VAR_INI(1) TICK_VAR_INI(2) StgInt TOTAL_CALLS=1; #endif /* Report the value of a counter */ #define REPORT(counter) \ { \ showStgWord64(counter,temp,rtsTrue/*commas*/); \ statsPrintf(" (" #counter ") : %s\n",temp); \ } /* Report the value of a counter as a percentage of another counter */ #define REPORT_PCT(counter,countertot) \ statsPrintf(" (" #counter ") %% of (" #countertot ") : %.1f%%\n", \ counter*100.0/countertot) #define TICK_PRINT(arity) \ REPORT(SLOW_CALLS_##arity); \ REPORT_PCT(RIGHT_ARITY_##arity,SLOW_CALLS_##arity); \ REPORT_PCT(TAGGED_PTR_##arity,RIGHT_ARITY_##arity); \ REPORT(RIGHT_ARITY_##arity); \ REPORT(TAGGED_PTR_##arity) #define TICK_PRINT_TOT(arity) \ statsPrintf(" (SLOW_CALLS_" #arity ") %% of (TOTAL_CALLS) : %.1f%%\n", \ SLOW_CALLS_##arity * 100.0/TOTAL_CALLS) static inline Time get_init_cpu(void) { return end_init_cpu - start_init_cpu; } static inline Time get_init_elapsed(void) { return end_init_elapsed - start_init_elapsed; } void stat_exit (void) { generation *gen; Time gc_cpu = 0; Time gc_elapsed = 0; Time init_cpu = 0; Time init_elapsed = 0; Time mut_cpu = 0; Time mut_elapsed = 0; Time exit_cpu = 0; Time exit_elapsed = 0; W_ tot_alloc; W_ alloc; if (RtsFlags.GcFlags.giveStats != NO_GC_STATS) { char temp[BIG_STRING_LEN]; Time tot_cpu; Time tot_elapsed; nat i, g, total_collections = 0; getProcessTimes( &tot_cpu, &tot_elapsed ); tot_elapsed -= start_init_elapsed; tot_alloc = calcTotalAllocated(); // allocated since the last GC alloc = tot_alloc - GC_tot_alloc; GC_tot_alloc = tot_alloc; /* Count total garbage collections */ for (g = 0; g < RtsFlags.GcFlags.generations; g++) total_collections += generations[g].collections; /* avoid divide by zero if tot_cpu is measured as 0.00 seconds -- SDM */ if (tot_cpu == 0.0) tot_cpu = 1; if (tot_elapsed == 0.0) tot_elapsed = 1; if (RtsFlags.GcFlags.giveStats >= VERBOSE_GC_STATS) { statsPrintf("%9" FMT_SizeT " %9.9s %9.9s", (W_)alloc*sizeof(W_), "", ""); statsPrintf(" %6.3f %6.3f\n\n", 0.0, 0.0); } for (i = 0; i < RtsFlags.GcFlags.generations; i++) { gc_cpu += GC_coll_cpu[i]; gc_elapsed += GC_coll_elapsed[i]; } // heapCensus() is called by the GC, so RP and HC time are // included in the GC stats. We therefore subtract them to // obtain the actual GC cpu time. gc_cpu -= PROF_VAL(RP_tot_time + HC_tot_time); gc_elapsed -= PROF_VAL(RPe_tot_time + HCe_tot_time); init_cpu = get_init_cpu(); init_elapsed = get_init_elapsed(); exit_cpu = end_exit_cpu - start_exit_cpu; exit_elapsed = end_exit_elapsed - start_exit_elapsed; mut_elapsed = start_exit_elapsed - end_init_elapsed - gc_elapsed; mut_cpu = start_exit_cpu - end_init_cpu - gc_cpu - PROF_VAL(RP_tot_time + HC_tot_time); if (mut_cpu < 0) { mut_cpu = 0; } if (RtsFlags.GcFlags.giveStats >= SUMMARY_GC_STATS) { showStgWord64(GC_tot_alloc*sizeof(W_), temp, rtsTrue/*commas*/); statsPrintf("%16s bytes allocated in the heap\n", temp); showStgWord64(GC_tot_copied*sizeof(W_), temp, rtsTrue/*commas*/); statsPrintf("%16s bytes copied during GC\n", temp); if ( residency_samples > 0 ) { showStgWord64(max_residency*sizeof(W_), temp, rtsTrue/*commas*/); statsPrintf("%16s bytes maximum residency (%" FMT_Word " sample(s))\n", temp, residency_samples); } showStgWord64(max_slop*sizeof(W_), temp, rtsTrue/*commas*/); statsPrintf("%16s bytes maximum slop\n", temp); statsPrintf("%16" FMT_SizeT " MB total memory in use (%" FMT_SizeT " MB lost due to fragmentation)\n\n", (size_t)(peak_mblocks_allocated * MBLOCK_SIZE_W) / (1024 * 1024 / sizeof(W_)), (size_t)(peak_mblocks_allocated * BLOCKS_PER_MBLOCK * BLOCK_SIZE_W - hw_alloc_blocks * BLOCK_SIZE_W) / (1024 * 1024 / sizeof(W_))); /* Print garbage collections in each gen */ statsPrintf(" Tot time (elapsed) Avg pause Max pause\n"); for (g = 0; g < RtsFlags.GcFlags.generations; g++) { gen = &generations[g]; statsPrintf(" Gen %2d %5d colls, %5d par %6.3fs %6.3fs %3.4fs %3.4fs\n", gen->no, gen->collections, gen->par_collections, TimeToSecondsDbl(GC_coll_cpu[g]), TimeToSecondsDbl(GC_coll_elapsed[g]), gen->collections == 0 ? 0 : TimeToSecondsDbl(GC_coll_elapsed[g] / gen->collections), TimeToSecondsDbl(GC_coll_max_pause[g])); } #if defined(THREADED_RTS) if (RtsFlags.ParFlags.parGcEnabled && n_capabilities > 1) { statsPrintf("\n Parallel GC work balance: %.2f%% (serial 0%%, perfect 100%%)\n", 100 * (((double)GC_par_tot_copied / (double)GC_par_max_copied) - 1) / (n_capabilities - 1) ); } #endif statsPrintf("\n"); #if defined(THREADED_RTS) statsPrintf(" TASKS: %d (%d bound, %d peak workers (%d total), using -N%d)\n", taskCount, taskCount - workerCount, peakWorkerCount, workerCount, n_capabilities); statsPrintf("\n"); { nat i; SparkCounters sparks = { 0, 0, 0, 0, 0, 0}; for (i = 0; i < n_capabilities; i++) { sparks.created += capabilities[i]->spark_stats.created; sparks.dud += capabilities[i]->spark_stats.dud; sparks.overflowed+= capabilities[i]->spark_stats.overflowed; sparks.converted += capabilities[i]->spark_stats.converted; sparks.gcd += capabilities[i]->spark_stats.gcd; sparks.fizzled += capabilities[i]->spark_stats.fizzled; } statsPrintf(" SPARKS: %" FMT_Word " (%" FMT_Word " converted, %" FMT_Word " overflowed, %" FMT_Word " dud, %" FMT_Word " GC'd, %" FMT_Word " fizzled)\n\n", sparks.created + sparks.dud + sparks.overflowed, sparks.converted, sparks.overflowed, sparks.dud, sparks.gcd, sparks.fizzled); } #endif statsPrintf(" INIT time %7.3fs (%7.3fs elapsed)\n", TimeToSecondsDbl(init_cpu), TimeToSecondsDbl(init_elapsed)); statsPrintf(" MUT time %7.3fs (%7.3fs elapsed)\n", TimeToSecondsDbl(mut_cpu), TimeToSecondsDbl(mut_elapsed)); statsPrintf(" GC time %7.3fs (%7.3fs elapsed)\n", TimeToSecondsDbl(gc_cpu), TimeToSecondsDbl(gc_elapsed)); #ifdef PROFILING statsPrintf(" RP time %7.3fs (%7.3fs elapsed)\n", TimeToSecondsDbl(RP_tot_time), TimeToSecondsDbl(RPe_tot_time)); statsPrintf(" PROF time %7.3fs (%7.3fs elapsed)\n", TimeToSecondsDbl(HC_tot_time), TimeToSecondsDbl(HCe_tot_time)); #endif statsPrintf(" EXIT time %7.3fs (%7.3fs elapsed)\n", TimeToSecondsDbl(exit_cpu), TimeToSecondsDbl(exit_elapsed)); statsPrintf(" Total time %7.3fs (%7.3fs elapsed)\n\n", TimeToSecondsDbl(tot_cpu), TimeToSecondsDbl(tot_elapsed)); #ifndef THREADED_RTS statsPrintf(" %%GC time %5.1f%% (%.1f%% elapsed)\n\n", TimeToSecondsDbl(gc_cpu)*100/TimeToSecondsDbl(tot_cpu), TimeToSecondsDbl(gc_elapsed)*100/TimeToSecondsDbl(tot_elapsed)); #endif if (mut_cpu == 0) { showStgWord64(0, temp, rtsTrue/*commas*/); } else { showStgWord64( (StgWord64)((GC_tot_alloc*sizeof(W_)) / TimeToSecondsDbl(mut_cpu)), temp, rtsTrue/*commas*/); } statsPrintf(" Alloc rate %s bytes per MUT second\n\n", temp); statsPrintf(" Productivity %5.1f%% of total user, %.1f%% of total elapsed\n\n", TimeToSecondsDbl(tot_cpu - gc_cpu - PROF_VAL(RP_tot_time + HC_tot_time) - init_cpu) * 100 / TimeToSecondsDbl(tot_cpu), TimeToSecondsDbl(tot_cpu - gc_cpu - PROF_VAL(RP_tot_time + HC_tot_time) - init_cpu) * 100 / TimeToSecondsDbl(tot_elapsed)); /* TICK_PRINT(1); TICK_PRINT(2); REPORT(TOTAL_CALLS); TICK_PRINT_TOT(1); TICK_PRINT_TOT(2); */ #if USE_PAPI papi_stats_report(); #endif #if defined(THREADED_RTS) && defined(PROF_SPIN) { nat g; statsPrintf("gc_alloc_block_sync: %"FMT_Word64"\n", gc_alloc_block_sync.spin); statsPrintf("whitehole_spin: %"FMT_Word64"\n", whitehole_spin); for (g = 0; g < RtsFlags.GcFlags.generations; g++) { statsPrintf("gen[%d].sync: %"FMT_Word64"\n", g, generations[g].sync.spin); } } #endif } if (RtsFlags.GcFlags.giveStats == ONELINE_GC_STATS) { char *fmt1, *fmt2; if (RtsFlags.MiscFlags.machineReadable) { fmt1 = " [(\"bytes allocated\", \"%llu\")\n"; fmt2 = " ,(\"num_GCs\", \"%d\")\n" " ,(\"average_bytes_used\", \"%ld\")\n" " ,(\"max_bytes_used\", \"%ld\")\n" " ,(\"num_byte_usage_samples\", \"%ld\")\n" " ,(\"peak_megabytes_allocated\", \"%lu\")\n" " ,(\"init_cpu_seconds\", \"%.3f\")\n" " ,(\"init_wall_seconds\", \"%.3f\")\n" " ,(\"mutator_cpu_seconds\", \"%.3f\")\n" " ,(\"mutator_wall_seconds\", \"%.3f\")\n" " ,(\"GC_cpu_seconds\", \"%.3f\")\n" " ,(\"GC_wall_seconds\", \"%.3f\")\n" " ]\n"; } else { fmt1 = "<large_objects, lge = 0; bd; bd = bd->link) { lge++; } gen_live = genLiveWords(gen); gen_blocks = genLiveBlocks(gen); mut = 0; for (i = 0; i < n_capabilities; i++) { mut += countOccupied(capabilities[i]->mut_lists[g]); // Add the pinned object block. bd = capabilities[i]->pinned_object_block; if (bd != NULL) { gen_live += bd->free - bd->start; gen_blocks += bd->blocks; } gen_live += gcThreadLiveWords(i,g); gen_blocks += gcThreadLiveBlocks(i,g); } debugBelch("%5d %7" FMT_Word " %9d", g, (W_)gen->max_blocks, mut); gen_slop = gen_blocks * BLOCK_SIZE_W - gen_live; debugBelch("%8" FMT_Word " %8d %8" FMT_Word " %8" FMT_Word "\n", gen_blocks, lge, gen_live*(W_)sizeof(W_), gen_slop*(W_)sizeof(W_)); tot_live += gen_live; tot_slop += gen_slop; } debugBelch("----------------------------------------------------------\n"); debugBelch("%41s%8" FMT_SizeT " %8" FMT_SizeT "\n", "",tot_live*sizeof(W_),tot_slop*sizeof(W_)); debugBelch("----------------------------------------------------------\n"); debugBelch("\n"); } /* ----------------------------------------------------------------------------- Stats available via a programmatic interface, so eg. GHCi can time each compilation and expression evaluation. -------------------------------------------------------------------------- */ extern HsInt64 getAllocations( void ) { return (HsInt64)GC_tot_alloc * sizeof(W_); } /* EZY: I'm not convinced I got all the casting right. */ extern rtsBool getGCStatsEnabled( void ) { return RtsFlags.GcFlags.giveStats != NO_GC_STATS; } extern void getGCStats( GCStats *s ) { nat total_collections = 0; nat g; Time gc_cpu = 0; Time gc_elapsed = 0; Time current_elapsed = 0; Time current_cpu = 0; getProcessTimes(¤t_cpu, ¤t_elapsed); /* EZY: static inline'ify these */ for (g = 0; g < RtsFlags.GcFlags.generations; g++) total_collections += generations[g].collections; for (g = 0; g < RtsFlags.GcFlags.generations; g++) { gc_cpu += GC_coll_cpu[g]; gc_elapsed += GC_coll_elapsed[g]; } s->bytes_allocated = GC_tot_alloc*(StgWord64)sizeof(W_); s->num_gcs = total_collections; s->num_byte_usage_samples = residency_samples; s->max_bytes_used = max_residency*sizeof(W_); s->cumulative_bytes_used = cumulative_residency*(StgWord64)sizeof(W_); s->peak_megabytes_allocated = (StgWord64)(peak_mblocks_allocated * MBLOCK_SIZE / (1024L * 1024L)); s->bytes_copied = GC_tot_copied*(StgWord64)sizeof(W_); s->max_bytes_slop = max_slop*(StgWord64)sizeof(W_); s->current_bytes_used = current_residency*(StgWord64)sizeof(W_); s->current_bytes_slop = current_slop*(StgWord64)sizeof(W_); /* s->init_cpu_seconds = TimeToSecondsDbl(get_init_cpu()); s->init_wall_seconds = TimeToSecondsDbl(get_init_elapsed()); */ s->mutator_cpu_seconds = TimeToSecondsDbl(current_cpu - end_init_cpu - gc_cpu - PROF_VAL(RP_tot_time + HC_tot_time)); s->mutator_wall_seconds = TimeToSecondsDbl(current_elapsed- end_init_elapsed - gc_elapsed); s->gc_cpu_seconds = TimeToSecondsDbl(gc_cpu); s->gc_wall_seconds = TimeToSecondsDbl(gc_elapsed); /* EZY: Being consistent with incremental output, but maybe should also discount init */ s->cpu_seconds = TimeToSecondsDbl(current_cpu); s->wall_seconds = TimeToSecondsDbl(current_elapsed - end_init_elapsed); s->par_tot_bytes_copied = GC_par_tot_copied*(StgWord64)sizeof(W_); s->par_max_bytes_copied = GC_par_max_copied*(StgWord64)sizeof(W_); } // extern void getTaskStats( TaskStats **s ) {} #if 0 extern void getSparkStats( SparkCounters *s ) { nat i; s->created = 0; s->dud = 0; s->overflowed = 0; s->converted = 0; s->gcd = 0; s->fizzled = 0; for (i = 0; i < n_capabilities; i++) { s->created += capabilities[i]->spark_stats.created; s->dud += capabilities[i]->spark_stats.dud; s->overflowed+= capabilities[i]->spark_stats.overflowed; s->converted += capabilities[i]->spark_stats.converted; s->gcd += capabilities[i]->spark_stats.gcd; s->fizzled += capabilities[i]->spark_stats.fizzled; } } #endif /* ----------------------------------------------------------------------------- Dumping stuff in the stats file, or via the debug message interface -------------------------------------------------------------------------- */ void statsPrintf( char *s, ... ) { FILE *sf = RtsFlags.GcFlags.statsFile; va_list ap; va_start(ap,s); if (sf == NULL) { vdebugBelch(s,ap); } else { vfprintf(sf, s, ap); } va_end(ap); } static void statsFlush( void ) { FILE *sf = RtsFlags.GcFlags.statsFile; if (sf != NULL) { fflush(sf); } } static void statsClose( void ) { FILE *sf = RtsFlags.GcFlags.statsFile; if (sf != NULL) { fclose(sf); } }