Title: [239969] trunk/Source/_javascript_Core
- Revision
- 239969
- Author
- msab...@apple.com
- Date
- 2019-01-14 19:01:31 -0800 (Mon, 14 Jan 2019)
Log Message
Add option to JSC to dump memory footprint on script completion
https://bugs.webkit.org/show_bug.cgi?id=193422
Reviewed by Mark Lam.
Added the --footprint option to dump peak and current memory usage. This uses the same
OS calls added in r2362362.
* jsc.cpp:
(printUsageStatement):
(CommandLine::parseArguments):
(jscmain):
Modified Paths
Diff
Modified: trunk/Source/_javascript_Core/ChangeLog (239968 => 239969)
--- trunk/Source/_javascript_Core/ChangeLog 2019-01-15 02:37:33 UTC (rev 239968)
+++ trunk/Source/_javascript_Core/ChangeLog 2019-01-15 03:01:31 UTC (rev 239969)
@@ -1,3 +1,18 @@
+2019-01-14 Michael Saboff <msab...@apple.com>
+
+ Add option to JSC to dump memory footprint on script completion
+ https://bugs.webkit.org/show_bug.cgi?id=193422
+
+ Reviewed by Mark Lam.
+
+ Added the --footprint option to dump peak and current memory usage. This uses the same
+ OS calls added in r2362362.
+
+ * jsc.cpp:
+ (printUsageStatement):
+ (CommandLine::parseArguments):
+ (jscmain):
+
2019-01-14 Yusuke Suzuki <yusukesuz...@slowstart.org>
[JSC] AI should check the given constant's array type when folding GetByVal into constant
Modified: trunk/Source/_javascript_Core/jsc.cpp (239968 => 239969)
--- trunk/Source/_javascript_Core/jsc.cpp 2019-01-15 02:37:33 UTC (rev 239968)
+++ trunk/Source/_javascript_Core/jsc.cpp 2019-01-15 03:01:31 UTC (rev 239969)
@@ -420,6 +420,7 @@
String m_uncaughtExceptionName;
bool m_treatWatchdogExceptionAsSuccess { false };
bool m_alwaysDumpUncaughtException { false };
+ bool m_dumpMemoryFootprint { false };
bool m_dumpSamplingProfilerData { false };
bool m_enableRemoteDebugging { false };
@@ -2572,6 +2573,7 @@
fprintf(stderr, " --exception=<name> Check the last script exits with an uncaught exception with the specified name\n");
fprintf(stderr, " --watchdog-exception-ok Uncaught watchdog exceptions exit with success\n");
fprintf(stderr, " --dumpException Dump uncaught exception text\n");
+ fprintf(stderr, " --footprint Dump memory footprint after done executing\n");
fprintf(stderr, " --options Dumps all JSC VM options and exits\n");
fprintf(stderr, " --dumpOptions Dumps all non-default JSC VM options before continuing\n");
fprintf(stderr, " --<jsc VM option>=<value> Sets the specified JSC VM option\n");
@@ -2720,6 +2722,11 @@
continue;
}
+ if (!strcmp(arg, "--footprint")) {
+ m_dumpMemoryFootprint = true;
+ continue;
+ }
+
static const unsigned exceptionStrLength = strlen("--exception=");
if (!strncmp(arg, "--exception=", exceptionStrLength)) {
m_uncaughtExceptionName = String(arg + exceptionStrLength);
@@ -2928,6 +2935,12 @@
printSuperSamplerState();
+ if (options.m_dumpMemoryFootprint) {
+ MemoryFootprint footprint = MemoryFootprint::now();
+
+ printf("Memory Footprint:\n Current Footprint: %llu\n Peak Footprint: %llu\n", footprint.current, footprint.peak);
+ }
+
return result;
}
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