[B! cpu] Nnwwwã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

Nnwww id:Nnwww

cpuã«é–¢ã™ã‚‹Nnwwwã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (9)

${{author_name}}$

{{{comment_expanded}}}

{{label}}

{{#is_bookmark}}ãƒªã‚¹ãƒˆ{{/is_bookmark}}{{^is_bookmark}}ãƒªãƒ³ã‚¯{{/is_bookmark}}

${{author_name}}$
{{author_name}}{{created}}
{{ #comment }}{{ comment }}{{ /comment }}
- {{ label }}

${{author_name}}$

{{{comment_expanded}}}

{{label}}

{{#is_bookmark}}ãƒªã‚¹ãƒˆ{{/is_bookmark}}{{^is_bookmark}}ãƒªãƒ³ã‚¯{{/is_bookmark}}

Linuxã‚«ãƒ¼ãƒãƒ«ãŒx86 microcodeã‚’æ‰±ã†å‡¦ç†ã«ã¤ã„ã¦ - Qiita
ã¯ã˜ã‚ã« ãŠä¹…ã—ã¶ã‚Šã§ã™ã€‚@akachichonã§ã™ã€‚ ã•ã¦ã€å½“åˆã¯ãƒ«ãƒ¼ãƒˆãƒ•ã‚¡ã‚¤ãƒ«ã‚·ã‚¹ãƒ†ãƒ å‘¨è¾ºã«é–¢ã™ã‚‹è¨˜äº‹ã‚’æ›¸ã“ã†ã¨ã—ã¾ã—ãŸãŒè‰²ã€…ã‚ã‚Šã€ä»Šå›žã¯ãƒžã‚¤ã‚¯ãƒã‚³ãƒ¼ãƒ‰ã‚¢ãƒƒãƒ—ãƒ‡ãƒ¼ãƒˆã«ã¤ã„ã¦æ›¸ãã¾ã—ãŸã€‚ ãªãŠã€å¼•ç”¨ã—ãŸã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ã‚‚ã—ãã¯ç¢ºèªã«ä½¿ã£ãŸç’°å¢ƒã¯ã€ã€ŒUbuntu Server 19.10ã€ã§ã™ã€‚ Ubuntu Server19.10ã®ã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰å–å¾—æ–¹æ³•ã«ã¤ã„ã¦ã¯ã€è£œè¶³ã€ŒUbuntu Linuxã®ã‚«ãƒ¼ãƒãƒ«ã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰å–å¾—æ–¹æ³•ã€ã‚’å‚ç…§ã—ã¦ãã ã•ã„ã€‚ ãƒ«ãƒ¼ãƒˆãƒ•ã‚¡ã‚¤ãƒ«ã‚·ã‚¹ãƒ†ãƒ ã‚¤ãƒ¡ãƒ¼ã‚¸ã«ã¤ã„ã¦ Ubuntu Server19.10ã®ãƒ«ãƒ¼ãƒˆãƒ•ã‚¡ã‚¤ãƒ«ã‚·ã‚¹ãƒ†ãƒ ã‚¤ãƒ¡ãƒ¼ã‚¸ã¯ã€/boot/initrd.img-5.3.0-24-genericã§ã™ã€‚ãƒ«ãƒ¼ãƒˆãƒ•ã‚¡ã‚¤ãƒ«ã‚·ã‚¹ãƒ†ãƒ ã‚¤ãƒ¡ãƒ¼ã‚¸ã¯Ubuntuã«é™ã‚‰ãšã€å¤šãã®Linuxãƒ‡ã‚£ã‚¹ãƒˆãƒªãƒ“ãƒ¥ãƒ¼ã‚·ãƒ§ãƒ³ã§å…±é€šã ã¨æ€ã„ã¾ã™ã€‚ ã•ã¦ã€ä¸èº«ã‚’ç¢ºèªã—ã¾ã—ã‚‡ã†ã€‚ãƒ«ãƒ¼ãƒˆãƒ•ã‚¡ã‚¤ãƒ«ã‚·ã‚¹ãƒ†ãƒ ã‚¤ãƒ¡
Nnwww 2024/12/31
è‘—è€…ã®æ–¹ã¨åŒã˜ãã€UbuntuãŒãƒ–ãƒ¼ãƒˆã™ã‚‹æ‰‹é †ã‚’è¿½ã†â†’initramfsã§CPUãƒžã‚¤ã‚¯ãƒã‚³ãƒ¼ãƒ‰ã®é©ç”¨ã‚’ã—ã¦ã„ã‚‹â†’ãƒžã‚¤ã‚¯ãƒã‚³ãƒ¼ãƒ‰ã«ã¤ã„ã¦èª¿ã¹ã‚‹ã¨ã„ã†çµŒè·¯ã§ã“ã“ã«ãŸã©ã‚Šç€ãã¾ã—ãŸã€‚åŠ©ã‹ã‚Šã¾ã™ã€‚

kernel

linux

cpu
ãƒªãƒ³ã‚¯
ãŸã£ãŸ99ç§’ã§ã€ŒCPUã®ä½œã‚Šæ–¹ã€ãŒã‚ã‹ã‚‹ãƒ ãƒ¼ãƒ“ãƒ¼
ç¾ä»£äººã®æ—¥å¸¸ç”Ÿæ´»ã«ã¯æ¬ ã‹ã›ãªã„PCã‚„ã‚¹ãƒžãƒ¼ãƒˆãƒ•ã‚©ãƒ³ã‚’ã¯ã˜ã‚ã€ã‚³ãƒ³ãƒ”ãƒ¥ãƒ¼ã‚¿ãƒ¼ã‚’çµ„ã¿è¾¼ã‚“ã é›»åŒ–è£½å“ã«ã¯CPU(ä¸å¤®æ¼”ç®—ãƒ¦ãƒ‹ãƒƒãƒˆ)ã‚„GPU(ã‚°ãƒ©ãƒ•ã‚£ãƒƒã‚¯ã‚¹æ¼”ç®—ãƒ¦ãƒ‹ãƒƒãƒˆ)ã¨å‘¼ã°ã‚Œã‚‹åŠå°Žä½“ãƒãƒƒãƒ—ãŒæè¼‰ã•ã‚Œã¦ã„ã¾ã™ã€‚ã“ã†ã—ãŸCPUã‚„GPUãªã©ã®åŠå°Žä½“ãƒãƒƒãƒ—ãŒã©ã†ã‚„ã£ã¦ä½œã‚‰ã‚Œã‚‹ã‹ã‚’ãŸã£ãŸ99ç§’ã§èª¬æ˜Žã™ã‚‹ãƒ ãƒ¼ãƒ“ãƒ¼ã‚’ã€ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢ã‚³ãƒ³ã‚µãƒ«ã‚¿ãƒ³ãƒˆã®ãƒãƒãƒ¼ãƒˆãƒ»ã‚¨ãƒ«ãƒ€ãƒ¼æ°ãŒå…¬é–‹ã—ã¦ã„ã¾ã™ã€‚ Man Solves Global Chip Shortage In 99 Seconds - YouTube ã¾ãšçŸ³ã‚’æ‹¾ã„ã¾ã™ã€‚ æ‹¾ã£ãŸçŸ³ã‚’ç²‰ã€…ã«ç •ãã¾ã™ã€‚ ã™ã‚‹ã¨ç´”åº¦98ï¼…ã®äºŒé…¸åŒ–ã‚±ã‚¤ç´ ãŒã§ãã¾ã—ãŸã€‚ ã“ã‚Œã‚’ã•ã‚‰ã«ç´”åº¦99.9ï¼…ã®äºŒé…¸åŒ–ã‚±ã‚¤ç´ ã«ç²¾è£½ã—ã¾ã™ã€‚ ã•ã‚‰ã«ã“ã®äºŒé…¸åŒ–ã‚±ã‚¤ç´ ã‚’ã€99.9999999ï¼…ã®å¤šçµæ™¶ã‚·ãƒªã‚³ãƒ³ã«ç²¾è£½ã—ã¾ã™ã€‚åŒ–å¦å¼ã¯SiO2ï¼‹2Câ†’Siï¼‹2COã§ã™ ã“ã®å¤šçµæ™¶ã‚·ãƒªã‚³ãƒ³ã‚’é«˜æ¸©ã§æº¶èžã—ã¾ã™ã€‚ æ¸©åº¦ã¯1
Nnwww 2021/11/12
cpu
ãƒªãƒ³ã‚¯
How to obtain the number of CPUs/cores in Linux from the command line?
Nnwww 2021/02/02
cpuã®ã‚³ã‚¢æ•°ã‚’ãƒãƒ¼ã‚¿ãƒ–ãƒ«ã«ã¨ã‚‹æ–¹æ³•ã€‚æœ€çµ‚çš„ã«lscpu/sysctlã‚’ãƒ‘ãƒ¼ã‚¹ã™ã‚‹ã®ãŒè‰¯ã„ã‚‰ã—ã„ã€‚

linux

Mac

cpu

SystemProgramming
ãƒªãƒ³ã‚¯
ã€Œå¼·ã„ãƒ¡ãƒ¢ãƒªãƒ¢ãƒ‡ãƒ«ã€ã¨ã€Œå¼±ã„ãƒ¡ãƒ¢ãƒªãƒ¢ãƒ‡ãƒ«ã€ - yamasaã®ãƒã‚¿å¸³
Apple M1ã«ã¤ã„ã¦ã®é¢ç™½ã„è¨˜äº‹ã‚’è¦‹ã‹ã‘ã¦ã€ä¹…ã—ã¶ã‚Šã«ãƒ¡ãƒ¢ãƒªãƒ¢ãƒ‡ãƒ«å±‹(?)ã®è¡€ãŒé¨’ã„ã ã®ã§ãƒ–ãƒã‚°ã‚’æ›¸ãã€‚ note.com å¼·ã„ãƒ¡ãƒ¢ãƒªãƒ¢ãƒ‡ãƒ« ç¾ä»£ã®CPUã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒãƒ£ã§ã¯ã€x86(64bit, 32bitã©ã¡ã‚‰ã‚‚)ãŒã€Œå¼·ã„ãƒ¡ãƒ¢ãƒªãƒ¢ãƒ‡ãƒ«ã€ã‚’æŽ¡ç”¨ã—ã¦ãŠã‚Šã€ãã‚Œä»¥å¤–ã®ãƒ¡ã‚¸ãƒ£ãƒ¼ãªCPUãŒã€Œå¼±ã„ãƒ¡ãƒ¢ãƒªãƒ¢ãƒ‡ãƒ«ã€ã‚’æŽ¡ç”¨ã—ã¦ã„ã‚‹ã€‚ã“ã®ã€Œå¼·ã„ãƒ¡ãƒ¢ãƒªãƒ¢ãƒ‡ãƒ«ã€ã€Œå¼±ã„ãƒ¡ãƒ¢ãƒªãƒ¢ãƒ‡ãƒ«ã€ã«ã¤ã„ã¦ã€ã¾ãšãŠã•ã‚‰ã„ã—ã¦ãŠã“ã†ã€‚ ä»¥ä¸‹ã®ã‚ˆã†ã«ã€2ã¤ã®å¤‰æ•°a, bã«å¯¾ã—ã¦ç•°ãªã‚‹CPUã‚³ã‚¢ãŒåŒæ™‚ã«ã‚¢ã‚¯ã‚»ã‚¹ã—ãŸã¨ã™ã‚‹ã€‚ int a = 0; int b = 0; CPU1: a = 1; b = 1; CPU2: int r1 = b; int r2 = a; (ä¸Šè¨˜ã¯Cè¨€èªžã«ä¼¼ãŸç–‘ä¼¼ã‚³ãƒ¼ãƒ‰ã‚’ç”¨ã„ã¦ã„ã‚‹ãŒã€å®Ÿéš›ã¯æ©Ÿæ¢°èªžå‘½ä»¤ã«ãªã£ã¦ã„ã‚‹ã¨è€ƒãˆã¦ã»ã—ã„ã€‚ã¤ã¾ã‚Šã€CPU1ã¯å¤‰æ•°a, bã®ç¤ºã™ãƒ¡ãƒ¢ãƒªã‚¢ãƒ‰ãƒ¬ã‚¹ã«å¯¾ã™ã‚‹ã‚¹ãƒˆã‚¢å‘½ä»¤ã‚’å®Ÿè¡Œã—ã¦
Nnwww 2020/11/30
cpu

memory

concurrency
ãƒªãƒ³ã‚¯
Branch prediction
This is a pseudo-transcript for a talk on branch prediction given at Two Sigma on 8/22/2017 to kick off "localhost", a talk series organized by RC. How many of you use branches in your code? Could you please raise your hand if you use if statements or pattern matching? Most of the audience rai ses their hands I wonâ€™t ask you to raise your hands for this next part, but my guess is that if I asked, h
Nnwww 2020/02/27
ã‚¢ã‚¦ãƒˆã‚ªãƒ–ã‚ªãƒ¼ãƒ€ãƒ¼ã®åˆ†å²äºˆæ¸¬ã«ã¤ã„ã¦ã®å¤–è¦³ã€‚æœ€æ–°ã®CPUã‚‚æ°—ã«ãªã‚‹

cpu

OoO
ãƒªãƒ³ã‚¯
Episode 31 â€“ Big.Little â€“ Misreading Chat
ARM ãŒä¸»å°Žã™ã‚‹çœé›»åŠ›ãƒžãƒ«ãƒã‚³ã‚¢ã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒãƒ£ Big.Little ã¨ Android ã®é–¢ä¿‚ã«ã¤ã„ã¦æ£®ç”°ãŒè©±ã—ã¾ã™ã€‚æ„Ÿæƒ³ãªã©ã¯ãƒãƒƒã‚·ãƒ¥ã‚¿ã‚° #misreading ã‹ [email protected] ã«ãŠå¯„ã›ãã ã•ã„ã€‚ big.LITTLE Techno logy: The Future of Mobile Single-ISA Heterogeneous Multi-Core Architectures Apple-designed processors â€“ Wikipedia Snapdragon 808 Processors with X10 LTE Specs and DetailsÂ (Nexus 5X) Snapdragon 821 Mobile Platform with X12 LTE and Adreno 530 GPUÂ (Pixel 1) Scheduli
Nnwww 2018/11/27
çœé›»åŠ›ã®ãŸã‚ã®ãƒžãƒ«ãƒã‚³ã‚¢ã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒãƒ£ã€é¢ç™½ã‹ã£ãŸ

android

cpu
ãƒªãƒ³ã‚¯
TechCrunch | Startup and Technology News
Tempus, a genomic testing and data analysis company started by Eric Lefkofsky, who previously founded Groupon, debuted on Nasdaq on Friday, rising about 15% on the opening.Â The company pricedâ€¦ The tech layoff wave is still going strong in 2024. Following significant workforce reductions in 2022 and 2023, this year has already seen 60,000 job cuts across 254 companies, according to independent lay
Nnwww 2018/10/18
ã“ã†ã„ã†ã®è«–æ–‡ã¸ã®ãƒªãƒ³ã‚¯å¼µã£ã¦ãã‚Œã‚‹ã¨å¬‰ã—ã„ã§ã™ã‚ˆãã€ã“ã¡ã‚‰ã®ã‚ˆã†ã§ã™ã€‚https://eprint.iacr.org/2018/418.pdf

security

CPU
ãƒªãƒ³ã‚¯
æœ¬å½“ã«ã‚ã‹ã‚‹ Spectre ã¨ Meltdown
1. æœ¬å½“ã«ã‚ã‹ã‚‹ Spectre ã¨ Meltdown å·ç”°è£•è²´ @hktechno 1 ã‚»ã‚ãƒ¥ãƒªãƒ†ã‚£ãƒ»ã‚ãƒ£ãƒ³ãƒ—å…¨å›½å¤§ä¼š2018 è¬›ç¾©è³‡æ–™ URL: https://goo.gl/uTwX2c 2. è‡ªå·±ç´¹ä»‹ @hktechno å·ç”° è£•è²´ (ã‹ã‚ãŸ ã²ã‚ãŸã‹) â— LINE æ ªå¼ä¼šç¤¾ é–‹ç™º1ã‚»ãƒ³ã‚¿ãƒ¼ LINE é–‹ç™º1å®¤ â—‹ ãƒ¡ãƒƒã‚»ãƒ³ã‚¸ãƒ£ãƒ¼ãƒ—ãƒ©ãƒƒãƒˆãƒ•ã‚©ãƒ¼ãƒ ã®é–‹ç™º â—‹ ä¸»ã«ã€ã‚¹ã‚¿ãƒ³ãƒ—ãƒ»çµµæ–‡å—ãƒ»ç€ã›ã‹ãˆã€ãŸã¾ã« IoT â— è‡ªä½œ CPU é–‹ç™ºã«ãƒãƒžã£ã¦ã„ãŸ â—‹ ã‚¢ã‚¦ãƒˆãƒ»ã‚ªãƒ–ãƒ»ã‚ªãƒ¼ãƒ€ãƒ¼å®Ÿè¡Œã§ãã‚‹è‡ªä½œ CPU â—‹ ä¸»ã«ã‚³ãƒ³ãƒ‘ã‚¤ãƒ©ã‚’ä½œã£ã¦ã„ãŸ â—‹ http://open-arch.org/ â—‹ http://amzn.asia/gtThKbh 2 3. çµŒæ´ï¼Ÿ 2008å¹´ ã‚»ã‚ãƒ¥ãƒªãƒ†ã‚£ãƒ»ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã‚ãƒ£ãƒ³ãƒ—å‚åŠ 2009, 2010, 2012 ãƒãƒ¥ãƒ¼ã‚¿ãƒ¼, 2015 è¬›å¸« 2009å¹´ ç‘æ³¢å¤§å¦
Nnwww 2018/08/24
è‰¯ã‹ã£ãŸã€‚foreshadowã®è©³ç´°ã‚’ã‚‚ã†å°‘ã—çŸ¥ã‚ŠãŸã„ã€‚

security

CPU
ãƒªãƒ³ã‚¯
Intel(R) 64 and IA-32 Architectures Software Developer's Manuals
Overview These manuals describe the architecture and programming environment of the IntelÂ® 64 and IA-32 architectures. Electronic versions of these documents allow you to quickly get the information you need and print only the pages you want. The IntelÂ® 64 and IA-32 architectures software developer's manuals are now available for download via one combined volume, a four-volume set, or a ten-volume
Nnwww 2018/04/16
Intel

CPU

manual
ãƒªãƒ³ã‚¯
1