Dmitry Morozovsky <[EMAIL PROTECTED]> writes: > Kris Kennaway <[EMAIL PROTECTED]> wrote: > > Dmitry Morozovsky <[EMAIL PROTECTED]> writes: > > > My experiments show that if you have enough memory to host radmdrive for > > > /usr/src you'd better leave it for caching - there were no statistically > > > meaningful performance difference, at least on machines with 1G+ RAM. > > Really? My measurements show the opposite (on a system with 16GB of > > RAM). > My last test on amd64/dualcore with 4G of RAM and -j4 shows > (buildworld+buildkernel): > > ==> /tmp/buildlog <== > 1996.45 real 3032.94 user 624.83 sys > Script done on Tue Sep 19 14:44:54 2006 > > ==> /tmp/buildlog.md <== > 1957.45 real 3033.93 user 585.78 sys > Script done on Tue Sep 19 15:20:42 2006 > > Second one was with 512M/4k/512 swap-backed md, the former with /usr/src on > the > gmirror'ed pair of SATAs.
Seems to me that your own numbers contradict you. You saved about 40 seconds (2%) by keeping /usr/src in a ram disk. DES -- Dag-Erling Smørgrav - [EMAIL PROTECTED] _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
