On Tue, 2006-06-13 at 18:09 -0600, Steve wrote: > What exactly is pdflush and how does it work?
"The pdflush kernel thread flushes dirty pages from the page cache. The page cache buffers accesses to the disk. To improve performance, actual writes to the disk are delayed until the pdflush daemon writes out dirtied data to disk. This is done if the available free memory dips below a threshold or if the page has remained dirty for a sufficiently long time. In the 2.4.* kernels, these two tasks were respectively performed by separate kernel threads, bdflush and kupdated." Source: Linux Magazine Kernel Threads Gearheads Written by Sreekrishnan Venkateswaran Thursday, 15 September 2005 -- Gabriel Gunderson http://gundy.org /* PLUG: http://plug.org, #utah on irc.freenode.net Unsubscribe: http://plug.org/mailman/options/plug Don't fear the penguin. */
