> Just a thought on the effect that HZ has on filesystem (and overall) > performance : > Linux has sort of backtracked from defaulting to HZ=1000 and enable it > only on kernels compiled > for "Desktop" work, and setting HZ=250 for the "Server" profile.
I'm doing some db-imports on postgresql on a file which takes 3 hours and 40 min. with default HZ (1000). Then I changed HZ to 250 (in loader.conf) and rebooted. The import still took 3 h. 40 min. so altering HZ does not seem to have any influence. #>sysctl kern.clockrate kern.clockrate: { hz = 250, tick = 4000, profhz = 166, stathz = 33 } -- regards Claus When lenity and cruelty play for a kingdom, the gentlest gamester is the soonest winner. Shakespeare _______________________________________________ freebsd-performance@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-performance To unsubscribe, send any mail to "[EMAIL PROTECTED]"