Merge MC -> JM
This commit is contained in:
Brian Hackett
237
js/src/gc/Statistics.cpp
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237
js/src/gc/Statistics.cpp
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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* vim: set ts=8 sw=4 et tw=78:
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*
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is SpiderMonkey JavaScript engine.
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*
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* The Initial Developer of the Original Code is
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* the Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2011
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include <stdio.h>
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#include "jscntxt.h"
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#include "jsprobes.h"
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#include "jsutil.h"
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#include "jscrashformat.h"
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#include "jscrashreport.h"
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#include "prmjtime.h"
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#include "gc/Statistics.h"
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namespace js {
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namespace gcstats {
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Statistics::Statistics(JSRuntime *rt)
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: runtime(rt)
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{
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char *env = getenv("MOZ_GCTIMER");
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if (!env || strcmp(env, "none") == 0) {
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fp = NULL;
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return;
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}
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if (strcmp(env, "stdout") == 0) {
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fullFormat = false;
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fp = stdout;
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} else if (strcmp(env, "stderr") == 0) {
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fullFormat = false;
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fp = stderr;
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} else {
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fullFormat = true;
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fp = fopen(env, "a");
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JS_ASSERT(fp);
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fprintf(fp, " AppTime, Total, Wait, Mark, Sweep, FinObj,"
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" FinStr, FinScr, FinShp, Destry, End, +Chu, -Chu, T, Reason\n");
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}
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PodArrayZero(counts);
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PodArrayZero(totals);
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startupTime = PRMJ_Now();
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}
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Statistics::~Statistics()
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{
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if (fp) {
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if (fullFormat)
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fprintf(fp,
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"------>TOTAL "
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"%6.1f, %6.1f, %6.1f, %6.1f, %6.1f, %6.1f, %6.1f, %6.1f\n",
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total(PHASE_GC), total(PHASE_MARK), total(PHASE_SWEEP),
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total(PHASE_SWEEP_OBJECT), total(PHASE_SWEEP_STRING),
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total(PHASE_SWEEP_SCRIPT), total(PHASE_SWEEP_SHAPE),
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total(PHASE_DESTROY));
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if (fp != stdout && fp != stderr)
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fclose(fp);
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}
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}
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struct GCCrashData
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{
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int isRegen;
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int isCompartment;
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};
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void
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Statistics::beginGC(JSCompartment *comp, Reason reason)
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{
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compartment = comp;
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PodArrayZero(phaseStarts);
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PodArrayZero(phaseEnds);
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PodArrayZero(phaseTimes);
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triggerReason = reason;
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beginPhase(PHASE_GC);
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Probes::GCStart(compartment);
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GCCrashData crashData;
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crashData.isCompartment = !!compartment;
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crash::SaveCrashData(crash::JS_CRASH_TAG_GC, &crashData, sizeof(crashData));
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}
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double
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Statistics::t(Phase phase)
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{
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return double(phaseTimes[phase]) / PRMJ_USEC_PER_MSEC;
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}
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double
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Statistics::total(Phase phase)
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{
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return double(totals[phase]) / PRMJ_USEC_PER_MSEC;
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}
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double
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Statistics::beginDelay(Phase phase1, Phase phase2)
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{
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return double(phaseStarts[phase1] - phaseStarts[phase2]) / PRMJ_USEC_PER_MSEC;
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}
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double
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Statistics::endDelay(Phase phase1, Phase phase2)
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{
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return double(phaseEnds[phase1] - phaseEnds[phase2]) / PRMJ_USEC_PER_MSEC;
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}
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void
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Statistics::printStats()
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{
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if (fullFormat) {
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/* App , Total, Wait , Mark , Sweep, FinOb, FinSt, FinSc, FinSh, Destry, End */
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fprintf(fp,
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"%12.0f, %6.1f, %6.1f, %6.1f, %6.1f, %6.1f, %6.1f, %6.1f, %6.1f, %6.1f, %6.1f, ",
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double(phaseStarts[PHASE_GC] - startupTime) / PRMJ_USEC_PER_MSEC,
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t(PHASE_GC),
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beginDelay(PHASE_MARK, PHASE_GC),
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t(PHASE_MARK), t(PHASE_SWEEP),
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t(PHASE_SWEEP_OBJECT), t(PHASE_SWEEP_STRING),
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t(PHASE_SWEEP_SCRIPT), t(PHASE_SWEEP_SHAPE),
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t(PHASE_DESTROY),
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endDelay(PHASE_GC, PHASE_DESTROY));
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fprintf(fp, "%4d, %4d,", counts[STAT_NEW_CHUNK], counts[STAT_DESTROY_CHUNK]);
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fprintf(fp, " %s, %s\n", compartment ? "C" : "G", ExplainReason(triggerReason));
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} else {
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fprintf(fp, "%f %f %f\n",
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t(PHASE_GC), t(PHASE_MARK), t(PHASE_SWEEP));
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}
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fflush(fp);
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}
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void
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Statistics::endGC()
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{
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Probes::GCEnd(compartment);
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endPhase(PHASE_GC);
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crash::SnapshotGCStack();
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for (int i = 0; i < PHASE_LIMIT; i++)
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totals[i] += phaseTimes[i];
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if (JSAccumulateTelemetryDataCallback cb = runtime->telemetryCallback) {
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(*cb)(JS_TELEMETRY_GC_REASON, triggerReason);
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(*cb)(JS_TELEMETRY_GC_IS_COMPARTMENTAL, compartment ? 1 : 0);
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(*cb)(JS_TELEMETRY_GC_IS_SHAPE_REGEN, 0);
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(*cb)(JS_TELEMETRY_GC_MS, t(PHASE_GC));
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(*cb)(JS_TELEMETRY_GC_MARK_MS, t(PHASE_MARK));
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(*cb)(JS_TELEMETRY_GC_SWEEP_MS, t(PHASE_SWEEP));
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}
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if (fp)
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printStats();
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PodArrayZero(counts);
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}
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void
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Statistics::beginPhase(Phase phase)
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{
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phaseStarts[phase] = PRMJ_Now();
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if (phase == gcstats::PHASE_SWEEP) {
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Probes::GCStartSweepPhase(NULL);
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if (!compartment) {
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for (JSCompartment **c = runtime->compartments.begin();
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c != runtime->compartments.end(); ++c)
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{
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Probes::GCStartSweepPhase(*c);
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}
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}
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}
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}
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void
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Statistics::endPhase(Phase phase)
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{
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phaseEnds[phase] = PRMJ_Now();
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phaseTimes[phase] += phaseEnds[phase] - phaseStarts[phase];
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if (phase == gcstats::PHASE_SWEEP) {
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if (!compartment) {
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for (JSCompartment **c = runtime->compartments.begin();
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c != runtime->compartments.end(); ++c)
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{
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Probes::GCEndSweepPhase(*c);
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}
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}
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Probes::GCEndSweepPhase(NULL);
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}
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}
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} /* namespace gcstats */
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} /* namespace js */
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