On 2016-10-19 14:57, Johnny Billquist wrote:
Fixing BDPs would also help to improve Unibus speed I assume. That wouldn't be too much worw.One potential issue is that the kernel is spending a damn large amount of time in the system these days. Performance is really sluggish, while the same hardware with another OS really performs much better.I still don't have any final numbers here, but I can say that in Ultrix, doing a cvs update on usr/src takes about 2h. NetBSD get stuck (for me) after maybe 12h, and at that point it have hardly started going through the files yet...
Correction: Ultrix takes about 4h for a full cvs update run, when the /usr/src is already populated more or less with up to date files.
The exact command given is "time cvs upd -dP >& u.log".
/usr/bin/time output:
14158.4 real 1468.1 user 3372.9 sys
tcsh output:
1476.000u 3310.990s 3:56:23.95 33.7% 265+662k 238182+601920io 4pf+0w
(Two different runs, so times are slightly different)
And this was for Ultrix. No numbers for NetBSD (yet).
There are some more details that could be marginally interesting if
people really want to know everything.
Johnny
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt%softjar.se@localhost || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol