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¸®´ª½º ³×Æ®¿öÅ© ºê¸´Áö ¸ðµå (IEEE 802.1d )
±Û¾´ÀÌ: EzDoum ±Û¾´³¯: 2012³â 12¿ù 23ÀÏ ¿ÀÈÄ 02:13
¸®´ª½º http://www.linuxfoundation.org/collaborate/workgroups/networking/bridge

http://iomem.com/index.php?archives/4-Ethernet-Bridges-under-Linux.html&serendipity%5Bentrypage%5D=3&serendipity%5Bentrypage%5D=all&serendipity%5Bentrypage%5D=all

http://www.tldp.org/HOWTO/html_single/Ethernet-Bridge-netfilter-HOWTO/


°í°´»ç....

  • ÷ºÎ ÆÄÀÏ: image002.png image002.png (16 KiB)
  • ( -- ´äÀå Àμâ¿ë ÆäÀÌÁö º»¹® email·Î º¸³»±â | ¸®´ª½º )  

    Linux SCSI Subsystem
    ±Û¾´ÀÌ: EzDoum ±Û¾´³¯: 2012³â 11¿ù 21ÀÏ ¿ÀÈÄ 03:49
    ÃÖÁ¾ ¸ñÇ¥´Â libATA(Sata)Àε¥, SCSI·¹À̾ °ÅÃÄ °¡¾ßÇÔ.
    ±âº»ÀûÀ¸·Î READ/WRITE ´Â Block Device BIO·Î µÇ³ª, ÀåÄ¡¸¦ Á¦¾î ÇÏ·Á¸é SCSI¸¦ °ÅÃļ­ Sata·Î ³»·Á°¡¾ß ÇÔ.

    ¾Æ·¡ ±×¸²Àº ibm developerworks ÀÚ·áÀÓ




    #....
    ( -- ´äÀå Àμâ¿ë ÆäÀÌÁö º»¹® email·Î º¸³»±â | ¸®´ª½º Ä¿³Î )  

    scatter-gather (DMA) µð¹ö±ë½Ã Âü°íÇÑ ÀÚ·á
    ±Û¾´ÀÌ: EzDoum ±Û¾´³¯: 2012³â 11¿ù 20ÀÏ ¿ÀÈÄ 09:45
    kernel°ú application °øÀ¯ÇÏ´Â heap ¸Þ¸ð¸® ÇÒ´çÀÚ ¶§¹®¿¡
    scatter-gatherÂÊ¿¡¼­ ¹®Á¦°¡ »ý±â´Â °æ¿ì(µ¥ÀÌÅÍ ±úÁü)¸¦ µð¹ö±ë Çߴµ¥,
    ÇÑ ÀÏÁÖÀÏ µ¿¾È ¾Æ·¡ ³»¿ëµé°ú ¾¾¸§ÇÔ.

    °á·ÐÀº dma_map_sg, dma_unmap_sg¿¡¼­ ¿ì¸® ÇÒ´çÀÚ°¡ ÇÒ´çÇÑ ¿µ¿ª¿¡ ´ëÇØ¼­
    dmac_map_area/dmac_unmap_area(L1ij½¬ Á¦¾î),
    outer_inv/clean_range(L2ij½¬....

    ( -- ´äÀå Àμâ¿ë ÆäÀÌÁö º»¹® email·Î º¸³»±â | ¸®´ª½º Ä¿³Î )  

    kernel IO ½ºÄÉÁì·¯ Å×½ºÆ®
    ±Û¾´ÀÌ: EzDoum ±Û¾´³¯: 2012³â 11¿ù 11ÀÏ ¿ÀÈÄ 07:20
    ¾Æ·¡ µÎ ÄÉÀ̽º°¡ DVR/NVR¿¡¼­ ³ìÈ­/Àç»ý(¹é¾÷) ½Ã³ª¸®¿À¿Í À¯»çÇÏ´Ù.
    ÀÌ µÎ°¡Áö ÄÉÀ̽º¸¦ ³õ°í ¸®´ª½º IO ½ºÄÉÁì·¯ ¿É¼Ç¿¡ µû¶ó ¼º´É Â÷À̰¡ Å©°Ô ¹ß»ýÇÑ´Ù.

    [quote="Test 1. Writes-Starving-Reads"]

    In the background, perform a streaming write, such as:

    while true
    do
    dd if=/dev/zero of=file....

  • ÷ºÎ ÆÄÀÏ: io_scheduler_bench.png io_scheduler_bench.png (54 KiB)
  • ( -- ´äÀå Àμâ¿ë ÆäÀÌÁö º»¹® email·Î º¸³»±â | ¸®´ª½º Ä¿³Î )  

    kernel locking¿¡ ´ëÇÑ Á¤¸®
    ±Û¾´ÀÌ: EzDoum ±Û¾´³¯: 2012³â 11¿ù 11ÀÏ ¿ÀÈÄ 02:43
    ¸®´ª½º Ä¿³Î µå¶óÀ̹ö °³¹ßÀÚ¶ó¸é ¾Æ·¡´Â ºü»èÇÏ°Ô ¼³¸íÇÒ ¼ö ÀÖ¾î¾ß ÇÑ´Ù.

    # Unreliable Guide To Locking - Rusty Russell (2003)
    http://www.kernel.org/pub/linux/kernel/people/rusty/kernel-locking/

    # Unreliable Guide To Hacking The Linux Kernel - Paul Russell (2000)
    http://people.netfilter.org/rusty/unreliable-guides/kernel-hacking/lk-hacking-guide.html

    #....

  • ÷ºÎ ÆÄÀÏ: kernel_lock.png kernel_lock.png (13 KiB)
  • ( -- ´äÀå Àμâ¿ë ÆäÀÌÁö º»¹® email·Î º¸³»±â | ¸®´ª½º Ä¿³Î )  

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