Re: Corrected gettimeofday() test code

2003-11-29 Thread Sten
On Sat, 29 Nov 2003, Kris Kennaway wrote: > I forwarded the reports of timecounter problems to phk, and he asked > that people who are seeing timecounter problems provide FULL details > of their system configuration, including: Please note that there are quite a few broken timecounters out ther

Re: Corrected gettimeofday() test code

2003-11-29 Thread Poul-Henning Kamp
In message <[EMAIL PROTECTED]>, "Marc G. Fournier" writes: >On Sat, 29 Nov 2003, Don Bowman wrote: > >> For this config (below), kern.timecounter.method=0 reproduces the >> problem, kern.timecounter.method=1 does not. > >Can anyone comment on what effect setting method to 1 has on the system? >Like

Re: Corrected gettimeofday() test code

2003-11-29 Thread Poul-Henning Kamp
In message <[EMAIL PROTECTED]>, "Marc G. Fournier" writes: Hmm, I'm not saying this makes sense, but at least there is an emergent pattern... Col#1 is duration of the shift, sorted in increasing order. Col#2 is the delta to the line above. Notice stratification on 50msec boundaries: 695.

RE: Corrected gettimeofday() test code

2003-11-29 Thread Marc G. Fournier
On Sat, 29 Nov 2003, Don Bowman wrote: > For this config (below), kern.timecounter.method=0 reproduces the > problem, kern.timecounter.method=1 does not. Can anyone comment on what effect setting method to 1 has on the system? Like, would one notice a degradation in performance? Marc G. Fou

RE: Corrected gettimeofday() test code

2003-11-29 Thread Don Bowman
From: Kris Kennaway [mailto:[EMAIL PROTECTED] > > I forwarded the reports of timecounter problems to phk, and he asked > that people who are seeing timecounter problems provide FULL details > of their system configuration, including: > > * dmesg > > * kernel configuration > > * compiler options

Re: Corrected gettimeofday() test code

2003-11-29 Thread Marc G. Fournier
On Sat, 29 Nov 2003, Kris Kennaway wrote: > * dmesg Attached ... > * kernel configuration Attached ... > * compiler options CFLAGS= -O -mpentium -pipe -g -DKVA_PAGES=512 COPTFLAGS= -O -mpentium -pipe -DKVA_PAGES=512 > * time-related system configuration (whether ntpd/timed/ntpdate is > runni