Thanks! I tried using O_DIRECT, but made no difference. Searching gave me this link: http://kerneltrap.org/node/view/2703 Does it really work? -Tulsi Ram. > Hi , > > Probably you can use the O_DIRECT flag to bypass the > cache subsystem . > > Cheers! > > --- Tulsi Ram Mayala > <tulsi_rammayala@persistent.co.in> wrote: > Thanks > Marc! >> This is a scary issue. I know that the files written >> by my application >> will not be read frequently (Only a very small >> percentage of them will be >> read). Can I programmatically OR using some system >> configuration, disable >> read cache on per file/process/systemwide basis? >> >> -Tulsi Ram. >> >> > On Wednesday 05 May 2004 03:04, Tulsi Ram Mayala >> wrote: >> > >> > Hi Tulsi, >> > >> >> I need some help to disable disk caching on Red >> Hat linux 7.2 (kernel >> >> 2.4). >> >> I run a server application on this system with 2 >> Gigs of RAM. The server >> >> application does a lot of disk IO and with time, >> the linux system >> >> consumes >> >> all of available memory in cache and buffers thus >> leaving no space for >> >> the >> >> processes to grow. The system starts swapping and >> slows down my server >> >> application. >> >> I need some way to limit/disable the disk >> caching. My application does >> >> both disk read and write intensive operations. >> >> Any pointers will be appreciated. >> >> Thanx in advance. >> > >> > I don't know what Kernel RH 7.2 is using, but >> maybe it's all related to >> > this: >> > >> > >> > https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=89226 >> > >> > ciao, Marc >> > >> >> >> -- >> Kernelnewbies: Help each other learn about the Linux >> kernel. >> Archive: >> http://mail.nl.linux.org/kernelnewbies/ >> FAQ: http://kernelnewbies.org/faq/ >> > > ________________________________________________________________________ > Yahoo! India Matrimony: Find your partner online. > http://yahoo.shaadi.com/india-matrimony/ > -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
