Re: [ANNOUNCE] v5.10-rc2-rt4

2020-11-12 Thread Sebastian Andrzej Siewior
On 2020-11-12 13:39:02 [+0100], Daniel Wagner wrote: > With the current version signaltest + your test patch and 'taskset -c1' > the results looks good again, around 230us (running since 2 hours). I've > tested first without taskset and it took about an half hour to hit > 350us. So pinning the thre

Re: [ANNOUNCE] v5.10-rc2-rt4

2020-11-12 Thread Daniel Wagner
On Tue, Nov 10, 2020 at 07:05:18PM +0100, Sebastian Andrzej Siewior wrote: > On 2020-11-09 15:37:03 [+0100], Daniel Wagner wrote: > > > I've been staring at the code of signaltest on Friday and I might need > > > to stare longer to figure out what it does. > > > > I hear you. Anyway, I gave the cu

Re: [ANNOUNCE] v5.10-rc2-rt4

2020-11-11 Thread Daniel Wagner
Sorry for the late response, I had to reinstall my system after a FS corruption... On Mon, Nov 09, 2020 at 05:31:43PM +0100, Sebastian Andrzej Siewior wrote: > > These test run only very short with hackbench as worlkload (5 minutes). > > Though I running these tests now for more than year with v4.

Re: [ANNOUNCE] v5.10-rc2-rt4

2020-11-10 Thread Sebastian Andrzej Siewior
On 2020-11-09 15:37:03 [+0100], Daniel Wagner wrote: > > I've been staring at the code of signaltest on Friday and I might need > > to stare longer to figure out what it does. > > I hear you. Anyway, I gave the current head a run with lazy preemption > disabled as you asked for. I just sent a few

Re: [ANNOUNCE] v5.10-rc2-rt4

2020-11-09 Thread Sebastian Andrzej Siewior
On 2020-11-09 15:37:03 [+0100], Daniel Wagner wrote: > > this looks odd. So rt1 has 415, rt2 has 399 and rt3 has 420 so lets say > > it is the same. And then rt4 should reduce it to 340. The only part that > > could have some influence is the are the highmem/kmap patches. But for > > ARM64 these ar

Re: [ANNOUNCE] v5.10-rc2-rt4

2020-11-09 Thread Daniel Wagner
On Mon, Nov 09, 2020 at 01:47:18PM +0100, Sebastian Andrzej Siewior wrote: > So it is the new migrate-disable code? If you have stable 100us you > should be able bisect it within the few commits between rt13 and rt14. Okay, I'll start a bissect in this range. > this looks odd. So rt1 has 415, rt2

Re: [ANNOUNCE] v5.10-rc2-rt4

2020-11-09 Thread Sebastian Andrzej Siewior
On 2020-11-06 17:14:13 [+0100], Daniel Wagner wrote: > On Fri, Nov 06, 2020 at 11:54:47AM +0100, Sebastian Andrzej Siewior wrote: > > > rpi3signaltest 5.9.0-rc8-rt12 > > > 813 0_signaltest t0-max-latency : fail 214.00 > > > rpi3signaltest 5.9.0-rc8-rt12 > > >

Re: [ANNOUNCE] v5.10-rc2-rt4

2020-11-06 Thread Daniel Wagner
On Fri, Nov 06, 2020 at 11:54:47AM +0100, Sebastian Andrzej Siewior wrote: > > rpi3signaltest 5.9.0-rc8-rt12 > > 813 0_signaltest t0-max-latency : fail 214.00 > > rpi3signaltest 5.9.0-rc8-rt12 > > 874 0_signaltest t0-max-latency : fail 217

Re: [ANNOUNCE] v5.10-rc2-rt4

2020-11-06 Thread Sebastian Andrzej Siewior
On 2020-11-04 17:06:50 [+0100], Daniel Wagner wrote: > On Wed, Nov 04, 2020 at 02:09:30PM +0100, Sebastian Andrzej Siewior wrote: > > Could you figure out if the arm64 thingy started with -rt4 or was > > already in rt3? > > I wrote a quick and dirty script to extract the data from my logs to see >

Re: [ANNOUNCE] v5.10-rc2-rt4

2020-11-04 Thread Daniel Wagner
On Wed, Nov 04, 2020 at 02:09:30PM +0100, Sebastian Andrzej Siewior wrote: > Could you figure out if the arm64 thingy started with -rt4 or was > already in rt3? I wrote a quick and dirty script to extract the data from my logs to see if the regression might be older then I remembered. I filtered o

Re: [ANNOUNCE] v5.10-rc2-rt4

2020-11-04 Thread Sebastian Andrzej Siewior
On 2020-11-04 13:47:46 [+0100], Daniel Wagner wrote: > On Wed, Nov 04, 2020 at 12:19:48PM +0100, Daniel Wagner wrote: > > Yes, Just fired up signaltest 5 times for arm64 and x86_64 with the > > latest release. Keep you posted. > > arm64 > 1184 0_signaltest t0-max-latency : fail

Re: [ANNOUNCE] v5.10-rc2-rt4

2020-11-04 Thread Daniel Wagner
On Wed, Nov 04, 2020 at 12:19:48PM +0100, Daniel Wagner wrote: > Yes, Just fired up signaltest 5 times for arm64 and x86_64 with the > latest release. Keep you posted. arm64 1184 0_signaltest t0-max-latency : fail 386.00 1185 0_signaltest t0-max-latency : fail

Re: [ANNOUNCE] v5.10-rc2-rt4

2020-11-04 Thread Daniel Wagner
On Wed, Nov 04, 2020 at 11:46:17AM +0100, Sebastian Andrzej Siewior wrote: > How reproducible are these numbers? If these numbers increase between > rt3 and rt4 then we have a hand full patches to look at. Usually signaltest generated reproducible results. I did see those higher numbers also for

Re: [ANNOUNCE] v5.10-rc2-rt4

2020-11-04 Thread Sebastian Andrzej Siewior
On 2020-11-04 11:38:09 [+0100], Daniel Wagner wrote: > On Tue, Nov 03, 2020 at 08:57:31PM +0100, Sebastian Andrzej Siewior wrote: > > I'm pleased to announce the v5.10-rc2-rt4 patch set. > > All tests on passed in my lab. On arm64 and arm I saw slightly higher > max latency values for signaltest a

Re: [ANNOUNCE] v5.10-rc2-rt4

2020-11-04 Thread Daniel Wagner
On Tue, Nov 03, 2020 at 08:57:31PM +0100, Sebastian Andrzej Siewior wrote: > I'm pleased to announce the v5.10-rc2-rt4 patch set. All tests on passed in my lab. On arm64 and arm I saw slightly higher max latency values for signaltest and sigwaittest. Usually they are below 200us but currently I se

[ANNOUNCE] v5.10-rc2-rt4

2020-11-03 Thread Sebastian Andrzej Siewior
Dear RT folks! I'm pleased to announce the v5.10-rc2-rt4 patch set. Changes since v5.10-rc2-rt3: - Update Thomas Gleixner's "mm/highmem: Preemptible variant of kmap_atomic & friends" series from v2 to v3. - Compile fix PREEMPT_COUNT=n. - Luis Claudio R. Goncalve reported a ptrace re