From b77fe6dc724c162b3de194d1b3f362ac4c7f5021 Mon Sep 17 00:00:00 2001 From: Tofu Linden Date: Tue, 26 Jan 2010 12:35:22 -0800 Subject: DEV-45468 SNOW-108: Fast timers are broken / badly-scaled on linux more reliable fix based on feedback from Richard. dicked with the Darwin results too since those seemed wrong based on the same feedback (also covered in test plan). --- indra/llcommon/llfasttimer.h | 10 +++++----- indra/llcommon/llfasttimer_class.cpp | 6 +++--- 2 files changed, 8 insertions(+), 8 deletions(-) (limited to 'indra/llcommon') diff --git a/indra/llcommon/llfasttimer.h b/indra/llcommon/llfasttimer.h index 32f3561616..48461df6ae 100644 --- a/indra/llcommon/llfasttimer.h +++ b/indra/llcommon/llfasttimer.h @@ -113,7 +113,7 @@ inline U64 LLFastTimer::getCPUClockCount64() struct timespec tp; #ifdef CLOCK_MONOTONIC // MONOTONIC supported at build-time? - if (-1 == clock_gettime(CLOCK_MONOTONIC,&tp)) // if MONOTONIC isn't supported at runtime, try REALTIME + if (-1 == clock_gettime(CLOCK_MONOTONIC,&tp)) // if MONOTONIC isn't supported at runtime then ouch, try REALTIME #endif clock_gettime(CLOCK_REALTIME,&tp); @@ -122,7 +122,7 @@ inline U64 LLFastTimer::getCPUClockCount64() inline U32 LLFastTimer::getCPUClockCount32() { - return (U32)LLFastTimer::getCPUClockCount64(); + return (U32)(LLFastTimer::getCPUClockCount64() >> 8); } #endif // (LL_LINUX || LL_SOLARIS)) @@ -134,14 +134,14 @@ inline U32 LLFastTimer::getCPUClockCount32() { U64 x; __asm__ volatile (".byte 0x0f, 0x31": "=A"(x)); - return (U32)x >> 8; + return (U32)(x >> 8); } inline U64 LLFastTimer::getCPUClockCount64() { U64 x; __asm__ volatile (".byte 0x0f, 0x31": "=A"(x)); - return x >> 8; + return x; } #endif @@ -154,7 +154,7 @@ inline U64 LLFastTimer::getCPUClockCount64() inline U32 LLFastTimer::getCPUClockCount32() { - return (U32)get_clock_count(); + return (U32)(get_clock_count()>>8); } inline U64 LLFastTimer::getCPUClockCount64() diff --git a/indra/llcommon/llfasttimer_class.cpp b/indra/llcommon/llfasttimer_class.cpp index abcaee673e..fae0a66873 100644 --- a/indra/llcommon/llfasttimer_class.cpp +++ b/indra/llcommon/llfasttimer_class.cpp @@ -226,12 +226,12 @@ void LLFastTimer::DeclareTimer::updateCachedPointers() //static #if LL_LINUX || LL_SOLARIS || ( LL_DARWIN && !(defined(__i386__) || defined(__amd64__)) ) -U64 LLFastTimer::countsPerSecond() +U64 LLFastTimer::countsPerSecond() // counts per second for the *32-bit* timer { - return sClockResolution; + return sClockResolution >> 8; } #else // windows or x86-mac -U64 LLFastTimer::countsPerSecond() +U64 LLFastTimer::countsPerSecond() // counts per second for the *32-bit* timer { static U64 sCPUClockFrequency = U64(CProcessor().GetCPUFrequency(50)); -- cgit v1.2.3