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Commitc039ba0

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Add memory info to getrusage output
Add the maxrss field to the getrusage output (log_*_stats). This waspreviously omitted because of portability concerns, but we feel thismight not be a concern anymore.based on patch by Justin Pryzby <pryzby@telsasoft.com>
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‎src/backend/tcop/postgres.c

Lines changed: 12 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -4421,11 +4421,8 @@ ShowUsage(const char *title)
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}
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/*
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* the only stats we don't show here are for memory usage -- i can't
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* figure out how to interpret the relevant fields in the rusage struct,
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* and they change names across o/s platforms, anyway. if you can figure
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* out what the entries mean, you can somehow extract resident set size,
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* shared text size, and unshared data and stack sizes.
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* The only stats we don't show here are ixrss, idrss, isrss. It takes
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* some work to interpret them, and most platforms don't fill them in.
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*/
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initStringInfo(&str);
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@@ -4445,6 +4442,16 @@ ShowUsage(const char *title)
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(long)sys.tv_sec,
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(long)sys.tv_usec);
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#if defined(HAVE_GETRUSAGE)
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appendStringInfo(&str,
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"!\t%ld kB max resident size\n",
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#if defined(__darwin__)
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/* in bytes on macOS */
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r.ru_maxrss/1024
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#else
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/* in kilobytes on most other platforms */
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r.ru_maxrss
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#endif
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);
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appendStringInfo(&str,
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"!\t%ld/%ld [%ld/%ld] filesystem blocks in/out\n",
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r.ru_inblock-Save_r.ru_inblock,

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