[B! profiling] fcicqã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

fcicq id:fcicq

profilingã«é–¢ã™ã‚‹fcicqã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (70)

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ipftrace2ã§å§‹ã‚ã‚‹Linuxãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã‚¹ã‚¿ãƒƒã‚¯æŽ¢è¨ª - Qiita
çš†ã•ã‚“ã¯Linuxãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã‚¹ã‚¿ãƒƒã‚¯ã®å•é¡Œã«ã‚ãŸã£ã¦ã—ã¾ã£ãŸæ™‚ã€ã‚ã‚‹ã„ã¯å˜ãªã‚‹èˆˆå‘³ã§Linuxãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã‚¹ã‚¿ãƒƒã‚¯ã®ä¸ã‚’èª¿ã¹ãŸã„ã¨æ€ã„ç«‹ã£ãŸæ™‚ã€ã©ã®ã‚ˆã†ã«ã—ã¦èª¿æŸ»ã‚’é€²ã‚ã¾ã™ã‹ï¼Ÿã‚«ãƒ¼ãƒãƒ«ã®ã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ã« printk ã‚’ä»•è¾¼ã‚“ã§ã‚«ãƒ¼ãƒãƒ«ã‚’å†ã‚³ãƒ³ãƒ‘ã‚¤ãƒ«ã™ã‚‹ã§ã—ã‚‡ã†ã‹ï¼Ÿã‚‚ã—ãã¯æœ€åˆã‹ã‚‰ã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ã‚’èªã‚€ã¨ã„ã†å¼·ã„æ–¹ã‚‚ã„ã‚‰ã£ã—ã‚ƒã‚‹ã‹ã‚‚ã—ã‚Œã¾ã›ã‚“ã€‚ã©ã¡ã‚‰ã®æ–¹æ³•ã‚‚ãªã‹ãªã‹ã®èŒ¨ã®é“ã§ã™ã€‚ãŠãã‚‰ãã€ã»ã¨ã‚“ã©ã®æ–¹ã¯æœ€çµ‚çš„ã«ftrace ã‚„bpftraceãªã©ã®Dynamic Tracingãƒ„ãƒ¼ãƒ«ã‚’ä½¿ã£ã¦ã€ã‚«ãƒ¼ãƒãƒ«ã®å‹•ä½œã‚’å®Ÿéš›ã«å‹•ã‹ã—ãªãŒã‚‰è¦‹ã‚‹ã¨ã„ã†æ–¹æ³•ã«è‡³ã‚‹ã¨æ€ã„ã¾ã™ã€‚ ã“ã®è¨˜äº‹ã§ã¯ ipftrace2 ã¨ã„ã†Dynamic Tracingãƒ„ãƒ¼ãƒ«ã®åŸºæœ¬çš„ãªä½¿ã„æ–¹ã‚’ã‚µãƒ³ãƒ—ãƒ«ã¨ã¨ã‚‚ã«ç´¹ä»‹ã—ã¾ã™ã€‚ipftrace2ã¯ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã‚¹ã‚¿ãƒƒã‚¯ã€ç‰¹ã«ãƒ‘ã‚±ãƒƒãƒˆå‡¦ç†ã®éƒ¨åˆ†ã‚’ãƒˆãƒ¬ãƒ¼ã‚·ãƒ³ã‚°ã‚’ã™ã‚‹ã“ã¨ã«ç‰¹åŒ–ã—ãŸä½œã‚Šã«ãªã£ã¦ãŠã‚Šã€
fcicq 2021/12/07
tracing

linux

network

kernel

profiling
ãƒªãƒ³ã‚¯
Linux perf Profiler UIs
Linux perf Profiler UIs pprof Web UI looking at a flamechart of regexp stack traces. This post is a quick literature review of CPU profiler user interfaces available for analysing Linux program performance. I couldn't find any list of profiler UIs online. Hopefully this can help people find the profiler UI that's right for them. CPU Profiler output is extremely multidimensional â€” processes, thread
fcicq 2021/10/05
linux

visualization

profiling

tools

resources
ãƒªãƒ³ã‚¯
GitHub - P403n1x87/austin: Python frame stack sampler for CPython
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fcicq 2021/09/29
python

profiling
ãƒªãƒ³ã‚¯
GitHub - koute/bytehound: A memory profiler for Linux.
Can be used to analyze memory leaks, see where exactly the memory is being consumed, identify temporary allocations and investigate excessive memory fragmentation Gathers every allocation and deallocation, along with full stack traces Can dynamically cull temporary allocations allowing you to profile over a long period of time Uses a custom, tailor-made stack unwinding implementation which makes i
fcicq 2021/08/19
tutorial: memory remain allocated at 98% runtime is leak candidate

rust

profiling

memory

debug
ãƒªãƒ³ã‚¯
Linux perfã§å¿«é©ã«è¨ˆæ¸¬ã™ã‚‹ãŸã‚ã®tips - Qiita
ã“ã‚ŒãŒã‚ã‚‹ã®ã¨ãªã„ã®ã¨ã§ã¯åˆ†ã‹ã‚Šã‚„ã™ã•ãŒå…¨ç„¶é•ã†ã®ã§ã€perfã‚’ä½¿ã†æ™‚ã¯å¸¸ã«å…¥ã‚Œã¦ãŠãã‚ˆã†ã«ã™ã‚‹ã¨ä¾¿åˆ©ã§ã™ã€‚ 2. --call-graph ã¯ fp ä»¥å¤–ã§ä½¿ã† ä¸Šè¨˜ã®å•é¡Œã‚’è§£æ±ºã™ã‚‹ã¨ perf record + perf report ã§ã¯ä½•ãŒå‘¼ã°ã‚Œã¦ã„ã‚‹ã‹ãŠãŠã‚€ãåˆ†ã‹ã‚‹ã“ã¨ãŒå¤šã„ã®ã§ã™ãŒã€call graphã‚’å‡ºã™ãŸã‚ã« perf record -g ã‚’ã™ã‚‹ã¨ [unknown] ã¨ã„ã†ã®ãŒå‡ºã¦ãã¦ã—ã¾ã†ã“ã¨ãŒã‚ã‚Šã¾ã™ã€‚(ä»¥é™ã®è¨ˆæ¸¬çµæžœã¯Rack::Utils::HeaderHashã‚’ä½¿ã£ãŸRuby VMã®ãƒ™ãƒ³ãƒã‚’Rubyã®masterã§èµ°ã‚‰ã›ãŸã‚‚ã®ã§ã™) Samples: 38K of event 'cycles:ppp', Event count (approx.): 271180000 Children Self Command Shared Object Symbol - 1
fcicq 2019/12/27
linux

profiling
ãƒªãƒ³ã‚¯
Profiling in Chromium OS
fcicq 2019/06/17
aka quipper, see also AutoPGO

linux

profiling

compiler
ãƒªãƒ³ã‚¯
GitHub - uber-archive/pyflame: ðŸ”¥ Pyflame: A Ptracing Profiler For Python. This project is deprecated and not maintained.
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fcicq 2019/05/14
python

profiling
ãƒªãƒ³ã‚¯
GitHub - KDE/heaptrack: A heap memory profiler for Linux
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fcicq 2018/05/23
see also http://milianw.de/blog/heaptrack-a-heap-memory-profiler-for-linux

memory

profiling

tools

linux

visualization
ãƒªãƒ³ã‚¯
âš™ D43951 [RFC] llvm-mca: a static performance analysis tool.
fcicq 2018/04/13
see also the thread.

profiling

llvm
ãƒªãƒ³ã‚¯
C2C - False Sharing Detection in Linux Perf - My Octopress Blog
Do you run your application in a NUMA environment? Is it multi-threaded? Is it multi-process with shared memory? If so, is your performance impacted by false sharing? Now thereâ€™s a way to easily find out. Weâ€™re posting patches for a new feature to the Linux perf tool, called â€œc2câ€ for cache-2-cache. We at Red Hat have been running the development prototype of c2c on lots of big Linux applications
fcicq 2018/03/30
kernel 4.10

profiling
ãƒªãƒ³ã‚¯
GitHub - plasma-umass/coz: Coz: Causal Profiling
by Charlie Curtsinger and Emery Berger Coz is a profiler for native code (C/C++/Rust) that unlocks optimization opportunities missed by traditional profilers. Coz employs a novel technique called causal profiling that measures optimization potential. It predicts what the impact of optimizing code will have on overall throughput or latency. Profiles generated by Coz show the "bang for buck" of opti
fcicq 2018/03/26
profiling

tools
ãƒªãƒ³ã‚¯
strace
linux syscall tracer Official repositories are at GitHub and GitLab. You can get latest binary packages from Fedora rawhide, OBS, Sisyphus. The latest officially signed release tarball can be found here. Development takes place on the mailing list (archive). Everyone is welcome to send bug reports, feature requests, comments and patches there. IRC channel: #strace@oftc. strace is released under th
fcicq 2018/03/16
use -y to show filename, -yy for ip:port https://github.com/strace/strace ioctl table: linux/64/ioctls_inc.h

sysadmin

tools

debug

profiling

linux

***
ãƒªãƒ³ã‚¯
PAPI
Overview The Performance Application Programming Interface (PAPI) offers a universal interface and methodology for gathering performance counter information from diverse hardware and software components. This includes major CPUs, GPUs, accelerators, interconnects, I/O systems, power interfaces, and even virtual cloud environments. Collaborations with industry leaders like AMD, Cray/HPE, IBM, Intel
fcicq 2018/01/03
by performance counter

performance

hardware

benchmark

profiling

tools
ãƒªãƒ³ã‚¯
GitHub - HewlettPackard/LinuxKI: LinuxKI Toolset (Trace-based performance analysis tool)
fcicq 2017/12/18
needs LIKI kernel module

linux

performance

kernel

profiling

tools
ãƒªãƒ³ã‚¯
Tiptop
Hardware performance monitoring counters have recently received a lot of attention. They have been used by diverse communities to understand and improve the quality of computing systems: for example, architects use them to extract application characteristics and propose new hardware mechanisms; compiler writers study how generated code behaves on particular hardware; software developers identify c
fcicq 2017/05/11
IPC counter for process

linux

performance

profiling

tools
ãƒªãƒ³ã‚¯
Valgrind
To use this tool, you must specify --tool=dhat on the Valgrind command line. DHAT is primarily a tool for examining how programs use their heap allocations. It tracks the allocated blocks, and inspects every memory access to find which block, if any, it is to. It presents, on a program point basis, information about these blocks such as sizes, lifetimes, numbers of reads and writes, and read and w
fcicq 2017/04/24
DHAT: a dynamic heap analysis tool, valgrind --tool=exp-dhat

memory

profiling

tools

linux
ãƒªãƒ³ã‚¯
GitHub - rkern/line_profiler: (OLD REPO) Line-by-line profiling for Python - Current repo ->
Note: As of version 2.1.2, pip install line_profiler does not work. Please install as follows until it is fixed in the next release: git clone https://github.com/rkern/line_profiler.git find line_profiler -name '*.pyx' -exec cython {} \; cd line_profiler pip install . --user Releases of line_profiler can be installed using pip: $ pip install line_profiler Source releases and any binaries can be do
fcicq 2016/12/10
python

profiling
ãƒªãƒ³ã‚¯
GitHub - wkz/ply: Light-weight Dynamic Tracer for Linux
fcicq 2016/10/28
compile to bpf https://wkz.github.io/ply/

tools

linux

profiling
ãƒªãƒ³ã‚¯
DTrace for Linux 2016
Recent posts: 24 Mar 2024 Â» Linux Crisis Tools 17 Mar 2024 Â» The Return of the Frame Pointers 10 Mar 2024 Â» eBPF Documentary 28 Apr 2023 Â» eBPF Observability Tools Are Not Security Tools 01 Mar 2023 Â» USENIX SREcon APAC 2022: Computing Performance: What's on the Horizon 17 Feb 2023 Â» USENIX SREcon APAC 2023: CFP 02 May 2022 Â» [email protected] 15 Apr 2022 Â» Netflix End of Series 1 09 Apr 2022 Â» Te
fcicq 2016/10/28
bpf

linux

profiling

tools
ãƒªãƒ³ã‚¯
Igniting Node.js Flames
â€œSimple things bring infinite pleasure. Yet, it takes us a while to realize that. But once simple is in, complex it out â€“ forever.â€ â€• Joan F. Marques Now that I have your attention, let me clear up the word â€œflames.â€ The flames that Iâ€™m referring to have nothing to do with fire. All I am talking about is performance tools in Node.js. When it comes to performance, everyone thinks of fighting fires,
fcicq 2016/07/15
flamegraph for nodejs, convert v8-profiler format

javascript

profiling

tools

visualization
ãƒªãƒ³ã‚¯
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