-----BEGIN PGP SIGNED MESSAGE----- Last night I attempted to install a firewall system that runs over a thousand processes (useing the TIS FWTK proxies). I upped the NR_TASKS to 4090 to allow them all to run. the way the particular proxies work is to have a listener for each port that forks off a copy of itself to handle the connection. one issue that I was seeing however is that under a light load (~30-50 simultanious connections, ~20-30 new connections/sec) vmstat was showing ~10% user, 40%system CPU utilization. at teh time it was useing ~80MB of ram. each proxy logs to syslog, while I had syslog configured to write to a local file system time went up by ~10%. configuring syslog to write out a serial port makes it so running syslog or not makes no noticable difference in the sup utilization unfortunantly the system is no longer in production, approx 2 hours after I went home this morning it hit the max FD limit (I had bumped it up to 16K) at ~100 connections/sec and we had to pull it out as nobody was available to do diagnostics. hardware is AMD thunderbird 950MHz, 512MB PC133 ram, 7200rpm ATA/66 drive is this something that 2.4 should improve? or are there other tuning paramaters I need to fiddle with? David Lang -----BEGIN PGP SIGNATURE----- Version: PGP 6.5.2 iQEVAwUBOhWd3z7msCGEppcbAQGsQwf6A2AAnSDwtUlftuaHuIaLleu6VKEDVwwI X2cWQfavGQFebLC01KzL9tTyEJwLHaKAhNsoKvOy7FwPFIVaOPafXlSR33tJokAD VC/899S39MTuD1huNP7sdjVfdovqmz7KaIXxqasymiUFlB7woFsxHhfjV0T6VKi4 jkJRJCPJ7yilli2DqOllES6MBC+tMqfiZ9mnMmaiRKcbZSHEMLI/eFM06kgjzBTI EDT0XNgj575Xa0SUC9JmOS9csxwTodfXCnfiqHwgqEAt/qGyfEZUgI1xID6HHTqH QfNt4mejDGhsJ3uFd6sYxN/Z/DrtoQLeYU8uYB/yfH7XZA31SGJYVQ== =qrrI -----END PGP SIGNATURE----- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
