ETM is a hardware feature available on arm64 devices. It collects the instruction stream running on each cpu. ARM uses ETM as an alternative for LBR (last branch record) on x86. Simpleperf supports collecting ETM data, and converting it to input files for AutoFDO, which can then be used for PGO (profile-guided … Visa mer Below are examples collecting ETM data for AutoFDO. It has two steps: first recording ETM data, second converting ETM data to AutoFDO … Visa mer To let simpleperf use ETM function, we need to enable Coresight driver in the kernel, which lives in /drivers/hwtracing/coresight. The Coresight driver can be enabled by below kernel configs: … Visa mer Android also has a daemon collecting ETM data periodically. It only runs on userdebug and eng devices. The source code is in … Visa mer Unless ARMv8.4 Self-hosted Trace extension is implemented, ETM is considered as an external debug interface. It may be disabled by … Visa mer
CoreSight - Perf — The Linux Kernel documentation
WebbEm Wed, Mar 29, 2024 at 09:41:08AM -0300, Arnaldo Carvalho de Melo escreveu: > Em Wed, Mar 29, 2024 at 12:14:20PM +0100, Mike Leach escreveu: > > The information to associate Trace ID and CPU will be changing. > > Drivers will start outputting this as a hardware ID packet in the data > > file which if present will be used in preference to the … WebbRe: [PATCH v8 1/3] perf: cs-etm: Move mapping of Trace ID and cpu into helper function From: Mike Leach Date: Wed Mar 29 2024 - 09:00:02 EST Next message: Tom Rix: "[PATCH] net: ksz884x: remove unused change variable" Previous message: Konrad Dybcio: "Re: [PATCH v3 1/1] PCI: qcom: Add support for system suspend and resume" In reply to: … mikuni hsr 42 carburetor rebuild instructions
[GIT PULL] perf/core improvements and fixes
WebbAbout ExPerfWiz. Download the latest release: ExPerfWiz.ps1 ExPerfWiz is a PowerShell based script to help automate the collection of performance data on Exchange 2013, … Webb*GIT PULL 00/63] perf/core improvements and fixes @ 2024-12-18 22:06 Arnaldo Carvalho de Melo 2024-12-18 22:06 ` [PATCH 01/63] perf dso: Export data_file_size() method there are no symbols Arnaldo Carvalho de Melo ` (63 more replies) 0 siblings, 64 replies; 69+ messages in thread From: Arnaldo Carvalho de Melo @ 2024-12-18 22:06 UTC ... Webb11 okt. 2024 · Simpleperf is part of the Android Open Source Project. The source code is located at Simpleperf . For details, see the Simpleperf documentation. To inspect your … new world xyz