很不错的网络性能方面的文章，除了OpenBSD外还涉及FreeBSD/Ubuntu等。值得一读 Many of today’s desktop systems and servers come with on board gigabit network controllers. After some simple speeds tests you will soon find out that you are not be able to transfer data over the network much faster than…
最近在OpenBSD自带的Apache1.3上总是碰到类似下面这样的错误。 [Wed Dec 28 14:15:51 2011] [error] [client 10.249.70.50] (63)File name too long: Cannot map GET /media/ajax/component/boxList/filter/featured/limit/all/layout/thumbBig/vars/a%253A25%253A%257Bs%253A3%253A%2522act%2522%253Bs%253A7%253A%2522boxList%2522%253Bs%253A3%253A%2522mod%2522%253Bs%253A5%253A%2522media%2522%253Bs%253A4%253A%2522mode%2522%253Bs%253A3%253A%2522all%2522%253Bs%253A6%253A%2522filter%2522%253Bs%253A8%253A%2522featured%2522%253Bs%253A5%253A%2522limit%2522%253Bs%253A3%253A%2522all%2522%253Bs%253A6%253A%2522layout%2522%253Bs%253A8%253A%2522thumbBig%2522%253Bs%253A6%253A%2522search%2522%253Bs%253A0%253A%2522%2522%253Bs%253A8%253A%2522per_page%2522%253Ba%253A3%253A%257Bs%253A8%253A%2522thumbBig%2522%253Bi%253A6%253Bs%253A5%253A%2522thumb%2522%253Bi%253A10%253Bs%253A4%253A%2522list%2522%253Bi%253A4%253B%257Ds%253A11%253A%2522show_filter%2522%253Bb%253A1%253Bs%253A10%253A%2522show_limit%2522%253Bb%253A0%253Bs%253A11%253A%2522show_layout%2522%253Bb%253A1%253Bs%253A11%253A%2522show_search%2522%253Bb%253A0%253Bs%253A10%253A%2522show_pager%2522%253Bb%253A0%253Bs%253A9%253A%2522show_more%2522%253Bb%253A1%253Bs%253A9%253A%2522save_page%2522%253Bb%253A1%253Bs%253A10%253A%2522pager_name%2522%253Bs%253A4%253A%2522page%2522%253Bs%253A9%253A%2522thumbsize%2522%253Bs%253A7%253A%2522160×120%2522%253Bs%253A9%253A%2522more_link%2522%253Bs%253A10%253A%2522media%252Flist%2522%253Bs%253A2%253A%2522id%2522%253Bs%253A9%253A%2522media-box%2522%253Bs%253A9%253A%2522component%2522%253Bs%253A7%253A%2522boxList%2522%253Bs%253A4%253A%2522type%2522%253BN%253Bs%253A4%253A%2522text%2522%253BN%253Bs%253A13%253A%2522captionParams%2522%253Ba%253A0%253A%257B%257Ds%253A7%253A%2522caption%2522%253Bs%253A9%253A%2522New%2Bmedia%2522%253Bs%253A4%253A%2522page%2522%253Bi%253A1%253B%257D HTTP/1.1 to file, referer: http://host 折腾了两周时间，最后发现是OpenBSD上的最长路径参数引起的。OpenBSD上路径最长默认为1024字节。Linux上则是4096。所以同样的web应用在Ubuntu+Apache2上没有问题，但在OpenBSD上就不行。 最后修改了下面两个文件，将PATH_MAX从原来的1024改为2048，然后重新编译内核后解决问题。 ./sys/sys/syslimits.h:46:#define PATH_MAX 2048 /*…