[B! aio] mogwaingã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

mogwaing id:mogwaing

aioã«é–¢ã™ã‚‹mogwaingã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (11)

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ãƒãƒƒãƒ•ã‚¡ã‚ãƒ£ãƒƒã‚·ãƒ¥ã¨AIOï¼ˆ3ï¼‰ - O'Reilly Japan Community Blog
å‰å›žã¾ã§ãƒ•ã‚¡ã‚¤ãƒ« I/O å…¨èˆ¬ã«ã¤ã„ã¦ç°¡å˜ã«æŒ¯ã‚Šè¿”ã‚Šã¾ã—ãŸã€‚ã„ã‚ˆã„ã‚ˆæœ¬é¡Œã®AIOã«å–ã‚ŠæŽ›ã‹ã‚Šã¾ã™ã€‚ä»Šå›žã¯ã€POSIXã®AIOã‚¤ãƒ³ã‚¿ãƒ•ã‚§ãƒ¼ã‚¹ã¨ã€Linuxã‚«ãƒ¼ãƒãƒ«ã®AIOã‚µãƒãƒ¼ãƒˆã«ã¤ã„ã¦ç´¹ä»‹ã—ã¾ã™ã€‚ POSIX AIO ã‚¤ãƒ³ã‚¿ãƒ•ã‚§ãƒ¼ã‚¹ ãƒãƒƒãƒ•ã‚¡ã‚ãƒ£ãƒƒã‚·ãƒ¥ã«ã‚ˆã‚Šç·©å’Œã•ã‚Œã‚‹ã¨ã¯ã„ãˆã€ãƒ•ã‚¡ã‚¤ãƒ« I/Oã®æœ€çµ‚åˆ°é”åœ°ç‚¹ã¯ãƒ‡ã‚£ã‚¹ã‚¯ã§ã™ã‹ã‚‰ã€åŒæœŸçš„ãªI/Oã¯ã‚„ã¯ã‚Šãã®æ™‚é–“ãŒå•é¡Œè¦–ã•ã‚Œã‚‹ã“ã¨ãŒã‚ã‚Šã¾ã™ã€‚ã¾ã ãƒãƒƒãƒ•ã‚¡ã‚ãƒ£ãƒƒã‚·ãƒ¥ã«å˜åœ¨ã—ãªã„ãƒ‡ãƒ¼ã‚¿ã‚’èªã¿å–ã‚‹å ´åˆã«ã¯é…ã„ãƒ‡ã‚£ã‚¹ã‚¯å¿…ãšå¾…ãŸãªã‘ã‚Œã°ãªã‚Šã¾ã›ã‚“ã€‚ã“ã®å‹•ä½œã‚’éžåŒæœŸã«è¡Œã„ã€å¾…ã£ã¦ã„ã‚‹é–“ã«ä»–ã®å‡¦ç†ã‚’é€²ã‚ã‚‰ã‚Œã‚‹ã‚ˆã†ã«ã™ã‚‹ã®ãŒéžåŒæœŸ I/Oã€AIOï¼ˆAsynchoronous I/Oï¼‰ã§ã™ã€‚POSIXã§ã¯aio_read(3)ã€aio_write(3)ã€aio_suspend(3)ã€aio_fsync(3)ã€aio_return(3)ã€aio_cancel(3)ã€
mogwaing 2011/09/29
posix aio, glibc aio, libaio

aio

linux

libaio
ãƒªãƒ³ã‚¯
Transactions on InnoDB Â» Blog Archive Â» Only God can make random selections
mogwaing 2010/09/23
adaptive_flushing

innodb

database
ãƒªãƒ³ã‚¯
Linux AIO Performance and Robustness for Enterprise Workloads | LinuxInsight
mogwaing 2010/05/04
linux

aio
ãƒªãƒ³ã‚¯
POSIXæº–æ‹ ã®éžåŒæœŸI/O - takkan_mã®No planãªæ—¥å¸¸
ã“ã‚Œã¯ã€ãƒ©ã‚¤ãƒ–ãƒ©ãƒªé–¢æ•°ã¨ã—ã¦å®Ÿè£…ã•ã‚Œã¦ãŠã‚Šã€ä»¥ä¸‹ã®é–¢æ•°ç¾¤ã‚’æŒã¡ã¾ã™ã€‚ aio_read(),aio_write(),aio_fsync(),aio_error() aio_return(),aio_cancel(),aio_suspend()è©³ã—ã„ä½¿ã„æ–¹ã¯èª¬æ˜Žã—ã¾ã›ã‚“ãŒã€aio_read(),aio_write()ã‚’ä½¿ã„ã€I/Oè¦æ±‚ã‚’ç™ºè¡Œã—ã¾ã™ã€‚I/Oè¦æ±‚ã¯ã€ãã‚Œãžã‚Œã®é–¢æ•°ä¸ã§è¦æ±‚ã‚’ç™ºè¡Œã—ãŸæ®µéšŽã§å¾©å¸°ã—ã¦ãã‚Œã¾ã™ã€‚ ã§ã¯æ¬¡ã®ã‚ˆã†ãªã€aio_readã‚’è¡Œã†ãƒ—ãƒã‚°ãƒ©ãƒ ã‚’æ›¸ã„ã¦ã€ã“ã®ãƒ©ã‚¤ãƒ–ãƒ©ãƒªé–¢æ•°ãŒã©ã®ã‚ˆã†ã«å®Ÿè£…ã•ã‚Œã¦ã„ã‚‹ã‹ã‚’è¦‹ã¦ã¿ã¾ã™ã€‚aio_readã®å‹•ä½œãŒè¦‹ãŸã„ã ã‘ãªã®ã§ã€ãŸã¶ã‚“ã€ã“ã®éžåŒæœŸI/Oãƒ©ã‚¤ãƒ–ãƒ©ãƒªã®ä½¿ã„æ–¹ã¨ã—ã¦ã¯ã€ã ã‚ã ã‚ã§ã™ã€‚ #include <stdlib.h> #include <sys/types.h> #include <sys/stat.h> #include <s
mogwaing 2010/05/03
aio

posix

unix
ãƒªãƒ³ã‚¯
Linuxã§aio - ï¼ˆã²ï¼‰ãƒ¡ãƒ¢
å®Ÿè£…ãŒ2ã¤ã‚ã‚‹ã€‚ä»¥ä¸‹ã€ã‚ãã¾ã§ä»Šã®æ™‚ç‚¹ã§ã®Linuxã®å ´åˆã®çŠ¶æ³/å®Ÿè£…ã®ãŠã¯ãªã—ã€‚ POSIX aio aio_read(3) ã¨ã‹ aio_write(3), aio_error(3), aio_return(3) ã¨ã‹ã€‚ ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ãƒ¼ã‚¹ã¯POSIXã§å®šç¾©ã•ã‚Œã¦ã„ã‚‹ã®ã¨åŒã˜ã€‚ ã‚·ã‚¹ãƒ†ãƒ ã‚³ãƒ¼ãƒ«ã˜ã‚ƒãªãã¦ãƒ©ã‚¤ãƒ–ãƒ©ãƒªé–¢æ•°ï¼ˆlibrtï¼‰ è£ã§pthreadã¤ãã£ã¦ãŒã‚“ã°ã£ã¦ã‚‹ã’ã€‚ libaio http://lse.sourceforge.net/io/aio.html http://ftp.jaist.ac.jp/pub/Linux/Fedora/development/source/SRPMS/libaio-0.3.106-3.2.src.rpm ã¨ã‹ io_prep_pread(2), io_prep_pwrite(2), io_submit(2), io_queue_init(2),
mogwaing 2010/04/16
posixã®æ–¹ã¯threadå†…ã§ã¯blockingã ã‹ã‚‰ã€threadæ•°ã¾ã§ã—ã‹åŒæ™‚ã«ã‚¢ã‚¯ã‚»ã‚¹ã§ããªã„ã¨ã„ã†ã“ã¨ã‹ãªï¼Ÿã‹ã¨ã„ã£ã¦threadæ•°ã‚‚ãã‚“ãªã«å¢—ã‚„ã›ãªã„. libaioã¯æœ¬å½“ã«non-blocking I/O

aio

linux
ãƒªãƒ³ã‚¯
Kernel Asynchronous I/O (AIO) Support for Linux
Overview AIO enables even a single application thread to overlap I/O operations with other processing, by providing an interface for submitting one or more I/O requests in one system call (io_submit()) without waiting for completion, and a separate interface (io_getevents()) to reap completed I/O operations associated with a given completion group. Support for kernel AIO has been included in the 2
mogwaing 2010/03/20
linux

kernel

aio
ãƒªãƒ³ã‚¯
[ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°] aio_readã‚’ä½¿ã£ãŸFutureã£ã½ã„ã‚¤ãƒ³ã‚¿ãƒ•ã‚§ãƒ¼ã‚¹ã®å®Ÿè£… - tsubosakaã®æ—¥è¨˜
ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ãƒ—ãƒã‚°ãƒ©ãƒ å‘¨ã‚Šã§ã€aio_read(3)*1ã‚’ä½¿ã†å¿…è¦ãŒå‡ºã¦ããŸã®ã§ã€è»½ãèª¿ã¹ã¦ã¿ãŸã€‚ ä»Šå›žã‚„ã‚ŠãŸã‹ã£ãŸã®ã¯éžåŒæœŸã«IOã‚’ç™ºè¡Œã—ãŸã‚ã¨ã«åˆ¥å‡¦ç†ã‚’è¡Œã£ã¦ã€ãã®å¾Œå–å¾—ã•ã‚ŒãŸçµæžœã‚’ä½¿ã†ã¨ã„ã†ã‚‚ã®ã ã£ãŸã®ã§Javaã®Furtureã£ã½ã„ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ã‚¤ã‚¹ã®å®Ÿè£…ã‚’è¡Œã£ã¦ã¿ãŸã€‚ Descriptorã‚¯ãƒ©ã‚¹ã®read_async(buf , count)ã‚’å‘¼ã¶ã¨FurtureDescriptor * ãŒè¿”ã£ã¦ãã‚‹ã®ã§ã€ãã‚Œã«å¯¾ã—ã¦åˆ¥å‡¦ç†ã‚’è¡Œã†ãªã©ã—ãŸã‚ã¨get()ã‚’å‘¼ã¶ã¨read(2)ã®çµæžœã«ç›¸å½“ã™ã‚‹å€¤ãŒè¿”ã£ã¦ãã‚‹ã€‚ å®Ÿè£…ã¯ä»¥ä¸‹ #include <iostream> #include <cstdlib> #include <unistd.h> #include <aio.h> #include <errno.h> using namespace std; class FurtureDescr
mogwaing 2010/03/16
posix asynchronous i/o

aio

posix
ãƒªãƒ³ã‚¯
AsyncIOã«ã¤ã„ã¦(ãã®2) - æœ€é€Ÿé…ä¿¡ç ”ç©¶ä¼š(@yamaz)
AsyncIOã«ã¤ã„ã¦(ãã®1)ã®ç¶šã. NONBlockã§IOå‡¦ç†ã‚’ã™ã‚‹æ–¹æ³•ã¨ã—ã¦selectã¨ã‚·ã‚°ãƒŠãƒ«ã‚’ä½¿ã†æ–¹æ³•ãŒã‚ã‚‹ã¨ã„ã†ã®ãŒå‰å›žã®è©±ã ã£ãŸãŒ, selectã¯selectã‚ˆã‚Škqueue,epollã§è¿°ã¹ãŸã¨ãŠã‚Š, ãƒ“ã‚¸ãƒ¼ãƒ«ãƒ¼ãƒ—ãŒã‹ã‹ã‚‹ãŸã‚ã‚ã¾ã‚ŠåŠ¹çŽ‡ã¯ã‚ˆããªã,ã‚·ã‚°ãƒŠãƒ«æ–¹å¼ã¯åˆ¶ç´„ãŒã‚ã‚‹ãŸã‚ã‚ã¾ã‚Šä½¿ã„å‹æ‰‹ãŒã‚ˆããªã„. ã¨ã„ã†ã‚ã‘ã§æ–°ã—ãå‡ºã¦ããŸã®ãŒPOSIX Asynchronous I/O(AIO)ã¨ã„ã†æ©Ÿæ§‹ã . ã“ã‚Œã¯IOã®waitã‚’ã‚¤ãƒ™ãƒ³ãƒˆãƒ‰ãƒªãƒ–ãƒ³å½¢å¼ã«ã—ã¦ãƒ“ã‚¸ãƒ¼ãƒ«ãƒ¼ãƒ—ã‚’ãªããã†ã¨ã„ã†ã‚‚ã®ã . ãƒ—ãƒã‚°ãƒ©ãƒ ã®æµã‚Œã¨ã—ã¦ã¯ä¸‹è¨˜ã®ã‚ˆã†ã«ãªã‚‹. 1. å¯¾è±¡ã¨ãªã‚‹ãƒ•ã‚¡ã‚¤ãƒ«ãƒ‡ã‚£ã‚¹ã‚¯ãƒªãƒ—ã‚¿ã«ã‚·ã‚°ãƒŠãƒ«ãƒãƒ³ãƒ‰ãƒ©ã‚‚ã—ãã¯ã‚¤ãƒ™ãƒ³ãƒˆãƒãƒ³ãƒ‰ãƒ©ã‚’ç™»éŒ²ã—ã¦ãŠã 2. aio_read/aio_writeã‚’å‘¼ã³å‡ºã™ã¨åˆ¶å¾¡ã¯ã™ãã«ãƒ¦ãƒ¼ã‚¶ã«æˆ»ã‚‹. 3ï¼Žå¯¾è±¡ã®ãƒ•ã‚¡ã‚¤ãƒ«ãƒ‡ã‚£ã‚¹ã‚¯ãƒªãƒ—ã‚¿ã®å‡¦ç†ãŒçµ‚ã‚ã‚‹ã¨ç™»éŒ²ã•ã‚Œã¦ã„ãŸãƒãƒ³
mogwaing 2010/03/16
posix asynchronous i/o

aio

posix

sample
ãƒªãƒ³ã‚¯
Asynchronous I/O (The GNU C Library)
mogwaing 2010/03/16
asynchronous i/o

aio

libc

posix
ãƒªãƒ³ã‚¯
Charming Python: Functional programming in Python, Part 3
IBM Developer is your one-stop location for getting hands-on training and learning in-demand skills on relevant techno logies such as generative AI, data science, AI, and open source.
mogwaing 2009/03/07
linux

aio

to see

unix

posix
ãƒªãƒ³ã‚¯
éžåŒæœŸI/O Linux
éžåŒæœŸI/O æ¦‚èª¬ Introduction to Asynchronous I/O AIO, I/O Multiplexingâ€¦ 2007å¹´8æœˆ6æ—¥ KLab æ ªå¼ä¼šç¤¾ Kãƒ©ãƒœãƒ©ãƒˆãƒªãƒ¼ å»£ç€¬ æ£æ˜Ž Copyright Â© KLab Inc. All rights reserved. ä»Šæ—¥ã®ç›®çš„ éžåŒæœŸI/Oã¨ã¯ä½•ã‹ã‚’çŸ¥ã‚‹ éžåŒæœŸI/Oã‚’ä½¿ã†ã¨ä½•ãŒã†ã‚Œã—ã„ã®ã‹ã‚’çŸ¥ã‚‹ éžåŒæœŸI/Oã‚’å®Ÿç¾ã™ã‚‹æ‰‹æ®µï¼ˆè¤‡æ•°ï¼‰ã‚’çŸ¥ã‚‹ Copyright Â© KLab Inc. All rights reserved. ã‚¢ã‚¸ã‚§ãƒ³ãƒ€ éžåŒæœŸI/Oã‚’ä½¿ã†ç†ç”± éžåŒæœŸI/Oã¨ã¯ï¼Ÿ AIOã®å®Ÿè£…ã‚’ç´¹ä»‹ AIOã®ä½¿ã„æ–¹ è½ç©‚ã²ã‚ã„ Copyright Â© KLab Inc. All rights reserved. ã‚¢ã‚¸ã‚§ãƒ³ãƒ€ éžåŒæœŸI/Oã‚’ä½¿ã†ç†ç”± éžåŒæœŸI/Oã¨ã¯ï¼Ÿ AIOã®å®Ÿè£…ã‚’ç´¹ä»‹ AIOã®ä½¿ã„æ–¹ è½ç©‚ã²ã‚
mogwaing 2007/08/17
aio

éžåŒæœŸ

linux

select

epoll
ãƒªãƒ³ã‚¯
1