[B! linux][performance] dannã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

dann id:dann

linuxã¨performanceã«é–¢ã™ã‚‹dannã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (67)

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BPFã‚’åˆ©ç”¨ã—ã€Linuxã‚«ãƒ¼ãƒãƒ«ã®ãƒ‘ãƒ©ãƒ¡ãƒ¼ã‚¿ã‚’ç¶™ç¶šçš„ã«è‡ªå‹•ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°ã™ã‚‹ã€Œbpftuneã€ã€‚ã‚ªãƒ©ã‚¯ãƒ«ãŒã‚ªãƒ¼ãƒ—ãƒ³ã‚½ãƒ¼ã‚¹ã§å…¬é–‹
ã‚ªãƒ©ã‚¯ãƒ«ã¯Linuxã‚«ãƒ¼ãƒãƒ«ã®ãƒ‘ãƒ©ãƒ¡ãƒ¼ã‚¿ã‚’ã€ãƒ¯ãƒ¼ã‚¯ãƒãƒ¼ãƒ‰ã«åˆã‚ã›ã¦ç¶™ç¶šçš„ã«è‡ªå‹•ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°ã™ã‚‹ãƒ„ãƒ¼ãƒ«ã€Œbpftuneã€ã‚’ã‚ªãƒ¼ãƒ—ãƒ³ã‚½ãƒ¼ã‚¹ã§å…¬é–‹ã—ã¾ã—ãŸï¼ˆGitHubã®ãƒšãƒ¼ã‚¸ï¼‰ã€‚ bpftuneã¯ã€ŒBPFã€ï¼ˆBerkeley Packet Filterï¼‰ã¨å‘¼ã°ã‚Œã‚‹ã€Linuxã‚«ãƒ¼ãƒãƒ«å†…ã®ã•ã¾ã–ã¾ãªæ©Ÿèƒ½ã‚’ãƒ•ãƒƒã‚¯ã—ã¦æ©Ÿèƒ½æ‹¡å¼µãŒå¯èƒ½ãªä»•çµ„ã¿ã‚’åˆ©ç”¨ã—ã€ç¶™ç¶šçš„ã«Linuxã‚«ãƒ¼ãƒãƒ«ã®ãã‚ã“ã¾ãªã‹ãƒ¬ãƒ™ãƒ«ã§ç›£è¦–ã‚’è¡Œã„è‡ªå‹•ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°ã‚’å®Ÿç¾ã—ã¦ã„ã¾ã™ã€‚ ã‚ªãƒ©ã‚¯ãƒ«ã¯bpftuneã‚’é–‹ç™ºã—ãŸèƒŒæ™¯ã¨ã—ã¦ã€ã‚¯ãƒ©ã‚¦ãƒ‰ã«ä»£è¡¨ã•ã‚Œã‚‹å¤§è¦æ¨¡ãªã‚µãƒ¼ãƒå±•é–‹ãŒå¯èƒ½ãªã‚¤ãƒ³ãƒ•ãƒ©ã«ãŠã„ã¦ã€ä»¥å‰ã‚ˆã‚Šã‚‚å€‹ã€…ã®ã‚µãƒ¼ãƒã®ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°ã«ã¤ã„ã¦æ³¨æ„ãŒæ‰•ã‚ã‚Œã‚‹ã“ã¨ãŒã»ã¨ã‚“ã©ãªããªã£ãŸã“ã¨ã€ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°ã•ã‚Œã‚‹ã¨ã—ã¦ã‚‚é™çš„ã«é©åˆ‡ãªè¨å®šãŒã‚ã‚‹ã¨è€ƒãˆã‚‰ã‚Œã‚‹ã“ã¨ãŒä¸€èˆ¬çš„ã§ã‚ã‚‹ã“ã¨ã‚’æŒ™ã’ã¦ã„ã¾ã™ã€‚ bpftuneã«ã‚ˆã‚‹è‡ªå‹•ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°å¯¾è±¡ã®é …ç›® bpftuneã¯ç¾
dann 2023/07/03
linux

performance
ãƒªãƒ³ã‚¯
CPU frequency scaling - ArchWiki
CPU performance scaling enables the operating system to scale the CPU frequency up or down in order to save power or improve performance. Scaling can be done automatically in response to system load, adjust itself in response to ACPI events, or be manually changed by user space programs. The Linux kernel offers CPU performance scaling via the CPUFreq subsystem, which defines two layers of abstract
dann 2021/12/27
linux

performance
ãƒªãƒ³ã‚¯
How to use the max CPU frequency in Linux?
dann 2021/12/27
linux

performance
ãƒªãƒ³ã‚¯
Using linux-fincore to Check Linux Page Cache Usage
All of Perconaâ€™s open-source software products, in one place, to download as much or as little as you need.
dann 2019/09/16
linux-fincore

linux

performance
ãƒªãƒ³ã‚¯
Recent Linux TCP Updates, and how to tune your 100G host
dann 2019/07/25
Fair Queuing Scheduler

linux

network

performance
ãƒªãƒ³ã‚¯
Optimizing web servers for high throughput and low latency
This is an expanded version of my talk at NginxConf 2017 on September 6, 2017. As an SRE on the Dropbox Traffic Team, Iâ€™m responsible for our Edge network: its reliability, performance, and efficiency. TheÂ Dropbox edge networkÂ is an nginx-based proxy tier designed to handle both latency-sensitive metadata transactions and high-throughput data transfers. In a system that is handling tens of gigabit
dann 2019/06/10
performance

network

linux
ãƒªãƒ³ã‚¯
LISA17 - Linux Container Performance Analysis
dann 2017/11/17
linux

performance

container
ãƒªãƒ³ã‚¯
LISA17 Container Performance Analysis
Talk for USENIX LISA17: "Containers pose interesting challenges for performance monitoring and analysis, requiring new analysis methodologies and tooling. Resource-oriented analysis, as is common with systems performance tools and GUIs, must now account for both hardware limits and soft limits, as implemented using cgroups. A reverse diagnosis methodology can be applied to identify whether a conta
dann 2017/11/09
linux

container

performance
ãƒªãƒ³ã‚¯
libeatmydataã‚’ä½¿ã£ã¦postfixã‚’åŠ‡é€Ÿã«ã™ã‚‹ [ç”¨æ³•ç”¨é‡è¦ç¢ºèª] - Hateburo: kazeburo hatenablog
libeatmydataã¨ã„ã†LD_PRELOADã‚’ä½¿ã£ã¦ã€èµ·å‹•ã—ãŸãƒ—ãƒã‚»ã‚¹ã®fsyncã‚’ç„¡åŠ¹åŒ–ã™ã‚‹ãƒ©ã‚¤ãƒ–ãƒ©ãƒªãŒã‚ã£ãŸã®ã§è©¦ã—ã¦ã¿ã¦ã„ã¾ã™ã€‚ libeatmydata - disable fsync and SAVE! fsyncãŒãªã„ã¨ä½•ãŒå¬‰ã—ã„ã‹ã¨ã„ã†ã¨ã‚¯ãƒ©ã‚¦ãƒ‰ã®ã‚ˆã†ãªIOã¾ã‚ã‚Šã®ç’°å¢ƒãŒå¼±ã„ã¨ã“ã‚ã§ã€å®‰å…¨æ€§ã¯è‹¥å¹²çŠ ç‰²ã«ãªã‚Šã¾ã™ãŒã€ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ã‚’ç¨¼ãã“ã¨ãŒã§ãã‚‹ã‚ˆã†ã«ãªã‚Šã¾ã™ã€‚ ã¾ãš perlã§fsyncã‚’ç™ºè¡Œã—ã¦ã©ã†ãªã‚‹ã‹straceã‚’ã¤ã‹ã£ã¦ç¢ºèªã—ã¦ã¿ã¾ã™ã€‚ libeatmydataãªã— $ strace perl -MIO::Handle -e 'open(my $fh,">:unix","test.txt"); print $fh "test"; IO::Handle::sync($fh);' open("test.txt", O_WRONLY|O_CREAT|O_TRUNC,
dann 2016/11/11
linux

performance
ãƒªãƒ³ã‚¯
iovisor/bcc: BCC - Tools for BPF-based Linux IO analysis, networking, monitoring, and more
BCC is a toolkit for creating efficient kernel tracing and manipulation programs, and includes several useful tools and examples. It makes use of extended BPF (Berkeley Packet Filters), formally known as eBPF, a new feature that was first added to Linux 3.15. Much of what BCC uses requires Linux 4.1 and above. eBPF was described by Ingo MolnÃ¡r as: One of the more interesting features in this cycle
dann 2016/04/03
linux

performance

bcc

bpf
ãƒªãƒ³ã‚¯
Linux Performance Analysis in 60,000 Milliseconds
You log in to a Linux server with a performance issue: what do you check in the first minute? At Netflix we have a massive EC2 Linux cloud, and numerous performance analysis tools to monitor and investigate its performance. These include Atlas for cloud-wide monitoring, and Vector for on-demand instance analysis. While those tools help us solve most issues, we sometimes need to login to an instanc
dann 2016/02/27
linux

performance
ãƒªãƒ³ã‚¯
6ä¸‡ãƒŸãƒªç§’ã§ã§ãã‚‹Linuxãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹åˆ†æž | Yakst
Netflixã®ã‚·ãƒ‹ã‚¢ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒˆã§ã‚ã‚‹Brendan Greggæ°ã«ã‚ˆã‚‹ã€Linuxã‚µãƒ¼ãƒã«ãƒã‚°ã‚¤ãƒ³ã—ã¦60ç§’ã§ã¾ãšèª¿ã¹ã‚‹ã“ã¨ã®ã¾ã¨ã‚ã€‚ ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹å•é¡Œã§Linuxã‚µãƒ¼ãƒãƒ¼ã«ãƒã‚°ã‚¤ãƒ³ã—ãŸã¨ã—ã¦ã€æœ€åˆã®1åˆ†ã§ä½•ã‚’èª¿ã¹ã¾ã™ã‹ï¼Ÿ Netflixã«ã¯ã€å¤šæ•°ã®EC2 Linuxã‹ã‚‰ãªã‚‹ã‚¯ãƒ©ã‚¦ãƒ‰ãŒã‚ã‚Šã€ãã®ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ã‚’ç›£è¦–ã—ãŸã‚Šèª¿æŸ»ã—ãŸã‚Šã™ã‚‹ãŸã‚ã®æ•°ã€…ã®ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹åˆ†æžãƒ„ãƒ¼ãƒ«ãŒã‚ã‚Šã¾ã™ã€‚ãã®ä¸ã«ã¯ã€ã‚¯ãƒ©ã‚¦ãƒ‰å…¨ä½“ã«ã‚ãŸã‚‹ç›£è¦–ã‚’è¡Œã†Atlasã‚„ã€ã‚ªãƒ³ãƒ‡ãƒžãƒ³ãƒ‰ã«ã‚¤ãƒ³ã‚¹ã‚¿ãƒ³ã‚¹ã®åˆ†æžã‚’è¡Œã†VectorãŒã‚ã‚Šã¾ã™ã€‚ã“ã‚Œã‚‰ã®ãƒ„ãƒ¼ãƒ«ã¯å¤šãã®å•é¡Œã‚’è§£æ±ºã™ã‚‹æ‰‹åŠ©ã‘ã‚’ã—ã¦ãã‚Œã¾ã™ãŒã€å„ã‚¤ãƒ³ã‚¹ã‚¿ãƒ³ã‚¹ã«ãƒã‚°ã‚¤ãƒ³ã—ã€æ¨™æº–çš„ãªLinuxãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ãƒ„ãƒ¼ãƒ«ã‚’å®Ÿè¡Œã™ã‚‹å¿…è¦ãŒã‚ã‚‹å ´åˆã‚‚ã‚ã‚Šã¾ã™ã€‚ ã“ã®è¨˜äº‹ã§ã¯ã€ã™ãä½¿ãˆã‚‹ã¯ãšã®æ¨™æº–çš„Linuxãƒ„ãƒ¼ãƒ«ã‚’ä½¿ã„ã‚³ãƒžãƒ³ãƒ‰ãƒ©ã‚¤ãƒ³ã«ãŠã„ã¦ã€æœ€é©åŒ–ã•ã‚ŒãŸãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹èª¿æŸ»ã‚’
dann 2016/02/27
linux

performance
ãƒªãƒ³ã‚¯
Netflix at Velocity 2015: Linux Performance Tools
There are many performance tools nowadays for Linux, but how do they all fit together, and when do we use them? At Velocity 2015, I gave a 90 minute tutorial on Linux performance tools. Iâ€™ve spoken on this topic before, but given a 90 minute time slot I was able to include more methodologies, tools, and live demonstrations, making it the most complete tour of the topic Iâ€™ve done. The video and sli
dann 2015/08/12
performance

linux
ãƒªãƒ³ã‚¯
Performance Analysis and Tuning â€“ Part 2 D. John Shakshober (Shak) Sr Consulting Eng / Director Performance Engineering Larry Woodman Senior Consulting Engineer / Kernel VM Jeremy Eder Principal Software Engineer/ Performance Engineering Agenda: Perfor
Performance Analysis and Tuning â€“ Part 2 D. John Shakshober (Shak) Sr Consulting Eng / Director Performance Engineering Larry Woodman Senior Consulting Engineer / Kernel VM Jeremy Eder Principal Software Engineer/ Performance Engineering Agenda: Performance Analysis Tuning Part II â€¢ Part I â€¢ RHELÂ EvolutionÂ 5Â>6Â>7Â â€“Â outÂofÂtheÂboxÂ tunedÂ forÂ CloudsÂ ÂÂ â€œtunedâ€ â€¢ Auto_NUMA_BalanceÂ â€“Â tunedÂ forÂ NonUnif
dann 2015/03/29
performance

linux
ãƒªãƒ³ã‚¯
Linux Performance Tools at LinuxCon North America 2014
Recent posts: 29 Oct 2024 Â» AI Flame Graphs 22 Jul 2024 Â» No More Blue Fridays 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» Brendan
dann 2014/08/24
linux

performance
ãƒªãƒ³ã‚¯
Linux Performance
static, benchmarking, tuning: sar, perf-tools, bcc/BPF: bpftrace, BPF book: Images license: creative commons Attribution-ShareAlike 4.0. This page links to various Linux performance material I've created, including the tools maps on the right. These use a large font size to suit slide decks. You can also print them out for your office wall. They show: Linux observability tools, Linux static perfor
dann 2014/07/27
linux

performance
ãƒªãƒ³ã‚¯
How to achieve Gigabit speeds with Linux
1 Gbit/s network cards have been available for some time now and 10Gbit/s cards have recently become available. However achieving rates of the order of Gigabits per second is not straightforward. It requires careful tuning of several components in the end systems. This document aims to provide information of how to configure end systems to achieve Gbit/s data transfers. Before you begin with the c
dann 2013/08/16
linux

network

performance

10g
ãƒªãƒ³ã‚¯
Google Code Archive - Long-term storage for Google Code Project Hosting.
Code Archive Skip to content Google About Google Privacy Terms
dann 2013/04/24
kernel

performance

linux
ãƒªãƒ³ã‚¯
IBM Presentations: Smart Planet Template
dann 2013/04/21
scheduler

cpu

linux

kernel

performance
ãƒªãƒ³ã‚¯
Improving performance - ArchWiki
This article provides information on basic system diagnostics relating to performance as well as steps that may be taken to reduce resource consumption or to otherwise optimize the system with the end-goal being either perceived or documented improvements to a system's performance. See also Gaming#Improving performance for additional gaming and low latency specific advice. The basics Know your sys
dann 2013/03/18
performance

linux
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