forked from lix-project/lix
* Print elapsed evaluation time.
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@ -7,6 +7,8 @@
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#include <cstring>
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#include <unistd.h>
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#include <sys/time.h>
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#include <sys/resource.h>
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#if HAVE_BOEHMGC
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@ -1279,12 +1281,18 @@ bool EvalState::eqValues(Value & v1, Value & v2)
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void EvalState::printStats()
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{
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char x;
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bool showStats = getEnv("NIX_SHOW_STATS", "0") != "0";
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Verbosity v = showStats ? lvlInfo : lvlDebug;
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printMsg(v, "evaluation statistics:");
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struct rusage buf;
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getrusage(RUSAGE_SELF, &buf);
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float cpuTime = buf.ru_utime.tv_sec + ((float) buf.ru_utime.tv_usec / 1000000);
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printMsg(v, format(" time elapsed: %1%") % cpuTime);
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printMsg(v, format(" size of a value: %1%") % sizeof(Value));
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printMsg(v, format(" expressions evaluated: %1%") % nrEvaluated);
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char x;
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printMsg(v, format(" stack space used: %1% bytes") % (&x - deepestStack));
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printMsg(v, format(" max eval() nesting depth: %1%") % maxRecursionDepth);
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printMsg(v, format(" stack space per eval() level: %1% bytes")
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