From 268281a5705b277eb0b1c9d5f3e63fc0d637c261 Mon Sep 17 00:00:00 2001 From: Erik Kundiman Date: Tue, 26 Dec 2023 12:11:15 +0800 Subject: An alternative in getting CPU freq on M-series This solution was retrieved from https://listman.redhat.com/archives/libvir-list/2022-February/228217.html sysctl hw.cpufrequency would result as empty on Apple Silicon (at least) M1, when run natively. Ironically (and that's why it's been working with viewers relying on Rosetta 2), arch -x86_64 /bin/bash -c 'sysctl hw.cpufrequency' run on an Apple Silicon would result in the correct number. --- indra/llcommon/llprocessor.cpp | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/indra/llcommon/llprocessor.cpp b/indra/llcommon/llprocessor.cpp index 9d53b9be35..f07a32c179 100644 --- a/indra/llcommon/llprocessor.cpp +++ b/indra/llcommon/llprocessor.cpp @@ -637,7 +637,15 @@ public: LLProcessorInfoDarwinImpl() { getCPUIDInfo(); +#ifdef __arm64__ + auto frequency = getSysctlInt64("hw.tbfrequency"); + struct clockinfo clockrate; + auto clockrate_len = sizeof(clockrate); + if (!sysctlbyname("kern.clockrate", &clockrate, &clockrate_len, NULL, 0)) + frequency *= clockrate.hz; +#else uint64_t frequency = getSysctlInt64("hw.cpufrequency"); +#endif setInfo(eFrequency, (F64)frequency / (F64)1000000); } -- cgit v1.2.3