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add JSON to NIX_SHOW_STATS

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This commit is contained in:
Michael Bishop 2018-09-01 19:50:22 -03:00
parent c29e5fbb13
commit 2fd1008c70
1 changed files with 90 additions and 24 deletions
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72
src/libexpr/eval.cc
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@ -6,12 +6,15 @@
#include "globals.hh" #include "globals.hh"
#include "eval-inline.hh" #include "eval-inline.hh"
#include "download.hh" #include "download.hh"
#include "json.hh"
#include <algorithm> #include <algorithm>
#include <cstring> #include <cstring>
#include <unistd.h> #include <unistd.h>
#include <sys/time.h> #include <sys/time.h>
#include <sys/resource.h> #include <sys/resource.h>
#include <iostream>
#include <fstream>
#include <sys/time.h> #include <sys/time.h>
#include <sys/resource.h> #include <sys/resource.h>
@ -23,6 +26,7 @@
#endif #endif
using std::cout;
namespace nix { namespace nix {
@ -1723,10 +1727,10 @@ bool EvalState::eqValues(Value & v1, Value & v2)
} }
} }
void EvalState::printStats() void EvalState::printStats()
{ {
bool showStats = getEnv("NIX_SHOW_STATS", "0") != "0"; bool showStats = getEnv("NIX_SHOW_STATS", "0") != "0";
bool showJsonStats = getEnv("NIX_SHOW_STATS", "0") == "json";
Verbosity v = showStats ? lvlInfo : lvlDebug; Verbosity v = showStats ? lvlInfo : lvlDebug;
printMsg(v, "evaluation statistics:"); printMsg(v, "evaluation statistics:");
@ -1741,6 +1745,68 @@ void EvalState::printStats()
auto sum = bEnvs + bLists + bValues + bAttrsets; auto sum = bEnvs + bLists + bValues + bAttrsets;
#if HAVE_BOEHMGC
GC_word heapSize, totalBytes;
GC_get_heap_usage_safe(&heapSize, 0, 0, 0, &totalBytes);
#endif
if (showJsonStats) {
auto outPath = getEnv("NIX_SHOW_STATS_PATH","-");
std::fstream fs;
if (outPath != "-") {
fs.open(outPath, std::fstream::out);
printMsg(v, format(" written to: %1%") % outPath);
}
JSONObject topObj(outPath == "-" ? cout : fs, true);
topObj.attr("cpuTime",cpuTime);
{
auto envs = topObj.object("envs");
envs.attr("number", nrEnvs);
envs.attr("bytes", bEnvs);
}
{
auto lists = topObj.object("list");
lists.attr("elements", nrListElems);
lists.attr("bytes", bLists);
lists.attr("concats", nrListConcats);
}
{
auto values = topObj.object("values");
values.attr("number", nrValues);
values.attr("bytes", bValues);
}
{
auto syms = topObj.object("symbols");
syms.attr("number", symbols.size());
syms.attr("bytes", symbols.totalSize());
}
{
auto sets = topObj.object("sets");
sets.attr("number", nrAttrsets);
sets.attr("bytes", bAttrsets);
}
{
JSONObject sizes = topObj.object("sizes");
sizes.attr("Env", sizeof(Env));
sizes.attr("Value", sizeof(Value));
sizes.attr("Bindings", sizeof(Bindings));
sizes.attr("Attr", sizeof(Attr));
}
topObj.attr("nrOpUpdates", nrOpUpdates);
topObj.attr("nrOpUpdateValuesCopied", nrOpUpdateValuesCopied);
topObj.attr("nrThunks", nrThunks);
topObj.attr("nrAvoided", nrAvoided);
topObj.attr("nrLookups", nrLookups);
topObj.attr("nrPrimOpCalls", nrPrimOpCalls);
topObj.attr("nrFunctionCalls", nrFunctionCalls);
#if HAVE_BOEHMGC
JSONObject gc = topObj.object("gc");
gc.attr("heapSize", heapSize);
gc.attr("totalBytes", totalBytes);
#endif
} else {
if (getEnv("NIX_SHOW_STATS_PATH","-") != "-") {
printError("warning: $NIX_SHOW_STATS_PATH only works in combination with NIX_SHOW_STATS=json");
}
printMsg(v, format(" time elapsed: %1%") % cpuTime); printMsg(v, format(" time elapsed: %1%") % cpuTime);
printMsg(v, format(" size of a value: %1%") % sizeof(Value)); printMsg(v, format(" size of a value: %1%") % sizeof(Value));
printMsg(v, format(" size of an attr: %1%") % sizeof(Attr)); printMsg(v, format(" size of an attr: %1%") % sizeof(Attr));
@ -1763,11 +1829,11 @@ void EvalState::printStats()
printMsg(v, format(" sets: %1% (%2% each, %3% mb total), attrs-in-sets: %4% (%5% each, %6% mb total)") % nrAttrsets % sizeof(Bindings) % ((nrAttrsets * sizeof(Bindings)) / 1024 / 1024) % nrAttrsInAttrsets % sizeof(Attr) % ((nrAttrsInAttrsets * sizeof(Attr)) / 1024 / 1024)); printMsg(v, format(" sets: %1% (%2% each, %3% mb total), attrs-in-sets: %4% (%5% each, %6% mb total)") % nrAttrsets % sizeof(Bindings) % ((nrAttrsets * sizeof(Bindings)) / 1024 / 1024) % nrAttrsInAttrsets % sizeof(Attr) % ((nrAttrsInAttrsets * sizeof(Attr)) / 1024 / 1024));
#if HAVE_BOEHMGC #if HAVE_BOEHMGC
GC_word heapSize, totalBytes;
GC_get_heap_usage_safe(&heapSize, 0, 0, 0, &totalBytes);
printMsg(v, format(" current Boehm heap size: %1% bytes") % heapSize); printMsg(v, format(" current Boehm heap size: %1% bytes") % heapSize);
printMsg(v, format(" total Boehm heap allocations: %1% bytes") % totalBytes); printMsg(v, format(" total Boehm heap allocations: %1% bytes") % totalBytes);
#endif #endif
}
if (countCalls) { if (countCalls) {
v = lvlInfo; v = lvlInfo;