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#149: [segperf] telemetry DEFAULT ON for every player (BT_PERF_LOG=0 opts out)

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Operator call: an opt-in flag on the one machine we most need data from is
the silent-diagnostic mistake this project's doctrine exists to prevent.
Every session log now carries [segperf] beside every [rstat] window, so the
next playtest gives the 817->857 stall hunt cross-machine baselines for free
-- Oracle's stalling rig and Sauron's clean one, same night, same build.
Cost: ~2 QPC reads per segment query, microseconds per second.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018SgmXGNMXavXiafKXf9MDC
This commit is contained in:
Joe DiPrima
2026-08-09 17:09:15 -05:00
co-authored by Claude Opus 5
parent a77c5a1407
commit aa250c4e22
2 changed files with 5 additions and 2 deletions
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engine/MUNGA/JMOVER.cpp
+4 -1
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@@ -135,7 +135,10 @@ void
)
{
Check(this);
static const int sPerf = getenv("BT_PERF_LOG") ? 1 : 0;
// DEFAULT ON (operator, 2026-08-09): every player's session log should
// carry this -- cross-machine comparison is the point. BT_PERF_LOG=0
// opts out. Cost: ~2 QPC reads per call, microseconds per second.
static const int sPerf = !(getenv("BT_PERF_LOG") && *getenv("BT_PERF_LOG") == '0');
LARGE_INTEGER t0, t1, fq;
++gBTSegWCalls;
if (sPerf) QueryPerformanceCounter(&t0);