Robert Arkiletian wrote:
On 10/5/07, "Terrell Prudé Jr." <microman cmosnetworks com> wrote:I just ran across this today over at www.linuxtoday.com. I tried out the following two settings on my K12LTSP 4.2EL box to see if they would indeed speed up response time for desktop apps. /sbin/sysctl -w vm.swappiness=1 (default is 60) /sbin/sysctl -w vm.vfs_cache_pressure=50 (default is 100) These are, as you might've guessed from the "vm" in the name, virtual memory settings for Linux (the kernel).Will both these changes only make a difference if your server is actively using swap? IOW if you never hit swap, do they matter? My server at home doesn't swap. However, I still notice a remarkable increase in app response time. Now, on a busy LTSP server with, say, 40 users, it'd probably benefit even more. --TP |