Re: Interesting interaction between lguest and CFS

* Ingo Molnar <[EMAIL PROTECTED]> wrote: > thanks. It shows the anomaly in action: > So all the time references we have show that (no surprise here) 1 > second passed between the two samples. But sched_clock() shows a > _large_ jump: > > .clock : 125652924079659272 >

Re: Interesting interaction between lguest and CFS

* Matt Mackall <[EMAIL PROTECTED]> wrote: > On Tue, Jun 05, 2007 at 09:50:15PM +0200, Ingo Molnar wrote: > > Matt, could you run this for 1-2 minutes and send us the sched_debug.txt > > output? > > http://selenic.com/sched_debug.txt.gz thanks. It shows the anomaly in action: now at

Re: Interesting interaction between lguest and CFS

* Matt Mackall [EMAIL PROTECTED] wrote: On Tue, Jun 05, 2007 at 09:50:15PM +0200, Ingo Molnar wrote: Matt, could you run this for 1-2 minutes and send us the sched_debug.txt output? http://selenic.com/sched_debug.txt.gz thanks. It shows the anomaly in action: now at 365294215491977

Re: Interesting interaction between lguest and CFS

* Ingo Molnar [EMAIL PROTECTED] wrote: thanks. It shows the anomaly in action: So all the time references we have show that (no surprise here) 1 second passed between the two samples. But sched_clock() shows a _large_ jump: .clock : 125652924079659272 .clock

Re: Interesting interaction between lguest and CFS

On Tue, Jun 05, 2007 at 09:50:15PM +0200, Ingo Molnar wrote: > Matt, could you run this for 1-2 minutes and send us the sched_debug.txt > output? http://selenic.com/sched_debug.txt.gz -- Mathematics is the supreme nostalgia of our time. - To unsubscribe from this list: send the line

Re: Interesting interaction between lguest and CFS

On Tue, Jun 05, 2007 at 09:08:06PM +0200, Ingo Molnar wrote: > > * Ingo Molnar <[EMAIL PROTECTED]> wrote: > > > Matt, could you send me your .config too? Maybe i can reproduce it > > with your config. > > ok, got it (off-list) and you seem to have the default HZ=250. Could you > change it to

Re: Interesting interaction between lguest and CFS

On Tue, Jun 05, 2007 at 09:08:06PM +0200, Ingo Molnar wrote: * Ingo Molnar [EMAIL PROTECTED] wrote: Matt, could you send me your .config too? Maybe i can reproduce it with your config. ok, got it (off-list) and you seem to have the default HZ=250. Could you change it to HZ=1000 -

Re: Interesting interaction between lguest and CFS

On Tue, Jun 05, 2007 at 09:50:15PM +0200, Ingo Molnar wrote: Matt, could you run this for 1-2 minutes and send us the sched_debug.txt output? http://selenic.com/sched_debug.txt.gz -- Mathematics is the supreme nostalgia of our time. - To unsubscribe from this list: send the line unsubscribe

Re: Interesting interaction between lguest and CFS

* Dmitry Adamushko <[EMAIL PROTECTED]> wrote: > On 05/06/07, Dmitry Adamushko <[EMAIL PROTECTED]> wrote: > >> now at 257428593818894 nsecs > >> > >> cpu: 0 > >> .nr_running: 3 > >> .raw_weighted_load : 2063 > >> .nr_switches : 242830075 > >> .nr_load_updates

Re: Interesting interaction between lguest and CFS

* Matt Mackall <[EMAIL PROTECTED]> wrote: > On Tue, Jun 05, 2007 at 02:37:38PM +1000, Rusty Russell wrote: > > On Mon, 2007-06-04 at 23:18 -0500, Matt Mackall wrote: > > > On Tue, Jun 05, 2007 at 12:31:15PM +1000, Rusty Russell wrote: > > > > Does this solve it for you? > > > > > > Nope.

Re: Interesting interaction between lguest and CFS

* Ingo Molnar <[EMAIL PROTECTED]> wrote: > Matt, could you send me your .config too? Maybe i can reproduce it > with your config. ok, got it (off-list) and you seem to have the default HZ=250. Could you change it to HZ=1000 - does the delay get alot smaller? if yes then this could be roughly

Re: Interesting interaction between lguest and CFS

On 05/06/07, Dmitry Adamushko <[EMAIL PROTECTED]> wrote: > now at 257428593818894 nsecs > > cpu: 0 > .nr_running: 3 > .raw_weighted_load : 2063 > .nr_switches : 242830075 > .nr_load_updates : 30172063 > .nr_uninterruptible: 0 > .jiffies

Re: Interesting interaction between lguest and CFS

On 05/06/07, Matt Mackall <[EMAIL PROTECTED]> wrote: > [...] > Click into the lguest window and trigger the delay. I did: while true; do sleep 1; cat /proc/sched_debug > sched_debug.txt; done and got this, hopefully inside the window: Sched Debug Version: v0.02 now at 257428593818894 nsecs

Re: Interesting interaction between lguest and CFS

On Tue, Jun 05, 2007 at 11:23:44AM +0200, Ingo Molnar wrote: > > * Matt Mackall <[EMAIL PROTECTED]> wrote: > > > Ok, my transcoding just finished as I was writing this. So I've > > reproduced the problem with this Python script that I had handy: > > > > memload.py: > > #!/usr/bin/python > > a

Re: Interesting interaction between lguest and CFS

On Tue, Jun 05, 2007 at 09:19:04AM +0200, Ingo Molnar wrote: > > * Matt Mackall <[EMAIL PROTECTED]> wrote: > > > sleep_max: 57476665627 > > block_max: 18014060106626075 > > hm, this block_max looks a bit suspect, it's 003fffb1359e341b. Does your > box

Re: Interesting interaction between lguest and CFS

On Tue, Jun 05, 2007 at 02:37:38PM +1000, Rusty Russell wrote: > On Mon, 2007-06-04 at 23:18 -0500, Matt Mackall wrote: > > On Tue, Jun 05, 2007 at 12:31:15PM +1000, Rusty Russell wrote: > > > Does this solve it for you? > > > > Nope. Doesn't accept input and hogs the CPU with lots of system

Re: Interesting interaction between lguest and CFS

Matt, could you send me your .config too? Maybe i can reproduce it with your config. Ingo - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please

Re: Interesting interaction between lguest and CFS

* Matt Mackall <[EMAIL PROTECTED]> wrote: > Ok, my transcoding just finished as I was writing this. So I've > reproduced the problem with this Python script that I had handy: > > memload.py: > #!/usr/bin/python > a = "a" * 16 * 1024 * 1024 > while 1: > b = a[1:] + "b" > a = b[1:] + "c"

Re: Interesting interaction between lguest and CFS

* Matt Mackall <[EMAIL PROTECTED]> wrote: > sleep_max: 57476665627 > block_max: 18014060106626075 hm, this block_max looks a bit suspect, it's 003fffb1359e341b. Does your box make any use of cpufreq? (what CPU is it?) > strace -f doesn't kill the

Re: Interesting interaction between lguest and CFS

* Rusty Russell <[EMAIL PROTECTED]> wrote: > This sounds like the waker process (nice 19) not getting a chance to > run. You can hack around it for the moment by changing "nice(19)" in > Documentation/lguest/lguest.c to something less aggressive. even if the waker runs at nice+19, under CFS

Re: Interesting interaction between lguest and CFS

* Rusty Russell [EMAIL PROTECTED] wrote: This sounds like the waker process (nice 19) not getting a chance to run. You can hack around it for the moment by changing nice(19) in Documentation/lguest/lguest.c to something less aggressive. even if the waker runs at nice+19, under CFS (which

Re: Interesting interaction between lguest and CFS

* Matt Mackall [EMAIL PROTECTED] wrote: sleep_max: 57476665627 block_max: 18014060106626075 hm, this block_max looks a bit suspect, it's 003fffb1359e341b. Does your box make any use of cpufreq? (what CPU is it?) strace -f doesn't kill the latency,

Re: Interesting interaction between lguest and CFS

* Matt Mackall [EMAIL PROTECTED] wrote: Ok, my transcoding just finished as I was writing this. So I've reproduced the problem with this Python script that I had handy: memload.py: #!/usr/bin/python a = a * 16 * 1024 * 1024 while 1: b = a[1:] + b a = b[1:] + c i suspect the

Re: Interesting interaction between lguest and CFS

Matt, could you send me your .config too? Maybe i can reproduce it with your config. Ingo - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read

Re: Interesting interaction between lguest and CFS

On Tue, Jun 05, 2007 at 02:37:38PM +1000, Rusty Russell wrote: On Mon, 2007-06-04 at 23:18 -0500, Matt Mackall wrote: On Tue, Jun 05, 2007 at 12:31:15PM +1000, Rusty Russell wrote: Does this solve it for you? Nope. Doesn't accept input and hogs the CPU with lots of system time. Dumb

Re: Interesting interaction between lguest and CFS

On Tue, Jun 05, 2007 at 09:19:04AM +0200, Ingo Molnar wrote: * Matt Mackall [EMAIL PROTECTED] wrote: sleep_max: 57476665627 block_max: 18014060106626075 hm, this block_max looks a bit suspect, it's 003fffb1359e341b. Does your box make any use

Re: Interesting interaction between lguest and CFS

On Tue, Jun 05, 2007 at 11:23:44AM +0200, Ingo Molnar wrote: * Matt Mackall [EMAIL PROTECTED] wrote: Ok, my transcoding just finished as I was writing this. So I've reproduced the problem with this Python script that I had handy: memload.py: #!/usr/bin/python a = a * 16 * 1024 *

Re: Interesting interaction between lguest and CFS

On 05/06/07, Matt Mackall [EMAIL PROTECTED] wrote: [...] Click into the lguest window and trigger the delay. I did: while true; do sleep 1; cat /proc/sched_debug sched_debug.txt; done and got this, hopefully inside the window: Sched Debug Version: v0.02 now at 257428593818894 nsecs cpu:

Re: Interesting interaction between lguest and CFS

On 05/06/07, Dmitry Adamushko [EMAIL PROTECTED] wrote: now at 257428593818894 nsecs cpu: 0 .nr_running: 3 .raw_weighted_load : 2063 .nr_switches : 242830075 .nr_load_updates : 30172063 .nr_uninterruptible: 0 .jiffies :

Re: Interesting interaction between lguest and CFS

* Ingo Molnar [EMAIL PROTECTED] wrote: Matt, could you send me your .config too? Maybe i can reproduce it with your config. ok, got it (off-list) and you seem to have the default HZ=250. Could you change it to HZ=1000 - does the delay get alot smaller? if yes then this could be roughly the

Re: Interesting interaction between lguest and CFS

* Matt Mackall [EMAIL PROTECTED] wrote: On Tue, Jun 05, 2007 at 02:37:38PM +1000, Rusty Russell wrote: On Mon, 2007-06-04 at 23:18 -0500, Matt Mackall wrote: On Tue, Jun 05, 2007 at 12:31:15PM +1000, Rusty Russell wrote: Does this solve it for you? Nope. Doesn't accept input and

Re: Interesting interaction between lguest and CFS

* Dmitry Adamushko [EMAIL PROTECTED] wrote: On 05/06/07, Dmitry Adamushko [EMAIL PROTECTED] wrote: now at 257428593818894 nsecs cpu: 0 .nr_running: 3 .raw_weighted_load : 2063 .nr_switches : 242830075 .nr_load_updates : 30172063

Re: Interesting interaction between lguest and CFS

On Mon, 2007-06-04 at 23:18 -0500, Matt Mackall wrote: > On Tue, Jun 05, 2007 at 12:31:15PM +1000, Rusty Russell wrote: > > Does this solve it for you? > > Nope. Doesn't accept input and hogs the CPU with lots of system time. Dumb question: did you replace both the module and the launcher?

Re: Interesting interaction between lguest and CFS

On Tue, Jun 05, 2007 at 12:31:15PM +1000, Rusty Russell wrote: > Does this solve it for you? Nope. Doesn't accept input and hogs the CPU with lots of system time. -- Mathematics is the supreme nostalgia of our time. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in

Re: Interesting interaction between lguest and CFS

On Tue, Jun 05, 2007 at 10:18:54AM +1000, Rusty Russell wrote: > On Mon, 2007-06-04 at 12:37 -0500, Matt Mackall wrote: > > With 2.6.22-rc3-mm1, I've got a long-running video transcoding going > > on. In other windows, I'm compiling, reading email, etc. with no > > noticeable problems. > > > > If

Re: Interesting interaction between lguest and CFS

On Tue, 2007-06-05 at 10:19 +1000, Rusty Russell wrote: > On Mon, 2007-06-04 at 12:37 -0500, Matt Mackall wrote: > > With 2.6.22-rc3-mm1, I've got a long-running video transcoding going > > on. In other windows, I'm compiling, reading email, etc. with no > > noticeable problems. > > > > If I fire

Re: Interesting interaction between lguest and CFS

On Tue, Jun 05, 2007 at 11:02:00AM +1000, Rusty Russell wrote: > On Mon, 2007-06-04 at 17:58 -0500, Olof Johansson wrote: > > > > Is this on hvc console? The hvc driver was recently modified to back off > > it's timing interval when there's no input, the max value is 2 seconds. > > > > See

Re: Interesting interaction between lguest and CFS

On Tue, 05 Jun 2007 11:02:00 +1000 Rusty Russell <[EMAIL PROTECTED]> wrote: > > > See b791072ba3c3b29bab1890963bde52eb944a8451 for the changes in question. > > Hmm, I thought that was only supposed to happen for "interruptless" > consoles? The comment certainly says it only applies to polled

Re: Interesting interaction between lguest and CFS

On Mon, 2007-06-04 at 17:58 -0500, Olof Johansson wrote: > On Mon, Jun 04, 2007 at 12:37:10PM -0500, Matt Mackall wrote: > > With 2.6.22-rc3-mm1, I've got a long-running video transcoding going > > on. In other windows, I'm compiling, reading email, etc. with no > > noticeable problems. > > > >

Re: Interesting interaction between lguest and CFS

On Mon, 2007-06-04 at 12:37 -0500, Matt Mackall wrote: > With 2.6.22-rc3-mm1, I've got a long-running video transcoding going > on. In other windows, I'm compiling, reading email, etc. with no > noticeable problems. > > If I fire up lguest and leave it sitting at a shell prompt for a > couple

Re: Interesting interaction between lguest and CFS

On Mon, Jun 04, 2007 at 12:37:10PM -0500, Matt Mackall wrote: > With 2.6.22-rc3-mm1, I've got a long-running video transcoding going > on. In other windows, I'm compiling, reading email, etc. with no > noticeable problems. > > If I fire up lguest and leave it sitting at a shell prompt for a >

Re: Interesting interaction between lguest and CFS

* James Morris <[EMAIL PROTECTED]> wrote: > On Mon, 4 Jun 2007, Ingo Molnar wrote: > > > perhaps lguest does something unusual when it idles? Does it fiddle > > sched_clock() in any way? > > One of the lguest processes calls nice(2), which seems like a long > shot, but also not impossibly

Re: Interesting interaction between lguest and CFS

* Ingo Molnar <[EMAIL PROTECTED]> wrote: > > I suggest you try this yourself [...] > > yep, i know how to use lguest and i'm already running it :) But i > cannot trigger the problem, that's why i was curious about your > host-side stats. i can run a hundred CPU hogs on the host and the

Re: Interesting interaction between lguest and CFS

On Mon, 4 Jun 2007, Ingo Molnar wrote: > perhaps lguest does something unusual when it idles? Does it fiddle > sched_clock() in any way? One of the lguest processes calls nice(2), which seems like a long shot, but also not impossibly related. (Note that newer patches in the lguest queue

Re: Interesting interaction between lguest and CFS

* Matt Mackall <[EMAIL PROTECTED]> wrote: > So I sent you everything but the stats for the CPU hog. ok, thx. > I suggest you try this yourself [...] yep, i know how to use lguest and i'm already running it :) But i cannot trigger the problem, that's why i was curious about your host-side

Re: Interesting interaction between lguest and CFS

On Mon, Jun 04, 2007 at 09:40:38PM +0200, Ingo Molnar wrote: > > * Matt Mackall <[EMAIL PROTECTED]> wrote: > > > > ah, so both the shell and the 'competing' CPU hog was running within > > > the same lguest instance? > > > > No. > > > > The CPU hog is running in the host. A single instance of

Re: Interesting interaction between lguest and CFS

* Matt Mackall <[EMAIL PROTECTED]> wrote: > > ah, so both the shell and the 'competing' CPU hog was running within > > the same lguest instance? > > No. > > The CPU hog is running in the host. A single instance of lguest using > busybox is started in another shell. When it reaches a shell

Re: Interesting interaction between lguest and CFS

On Mon, Jun 04, 2007 at 09:12:29PM +0200, Ingo Molnar wrote: > > * Matt Mackall <[EMAIL PROTECTED]> wrote: > > > > btw., does this only happen with lguest, or with other idle shells > > > too? > > > > Only noticed with lguest. > > ah, so both the shell and the 'competing' CPU hog was running

Re: Interesting interaction between lguest and CFS

* Matt Mackall <[EMAIL PROTECTED]> wrote: > > btw., does this only happen with lguest, or with other idle shells > > too? > > Only noticed with lguest. ah, so both the shell and the 'competing' CPU hog was running within the same lguest instance? Ingo - To unsubscribe from this

Re: Interesting interaction between lguest and CFS

On Mon, Jun 04, 2007 at 08:11:51PM +0200, Ingo Molnar wrote: > > * Matt Mackall <[EMAIL PROTECTED]> wrote: > > > With 2.6.22-rc3-mm1, I've got a long-running video transcoding going > > on. In other windows, I'm compiling, reading email, etc. with no > > noticeable problems. > > > > If I fire

Re: Interesting interaction between lguest and CFS

On Mon, Jun 04, 2007 at 07:54:36PM +0200, Ingo Molnar wrote: > > * Matt Mackall <[EMAIL PROTECTED]> wrote: > > > With 2.6.22-rc3-mm1, I've got a long-running video transcoding going > > on. In other windows, I'm compiling, reading email, etc. with no > > noticeable problems. > > > > If I fire

Re: Interesting interaction between lguest and CFS

* Matt Mackall <[EMAIL PROTECTED]> wrote: > With 2.6.22-rc3-mm1, I've got a long-running video transcoding going > on. In other windows, I'm compiling, reading email, etc. with no > noticeable problems. > > If I fire up lguest and leave it sitting at a shell prompt for a > couple moments,

Re: Interesting interaction between lguest and CFS

* Matt Mackall <[EMAIL PROTECTED]> wrote: > With 2.6.22-rc3-mm1, I've got a long-running video transcoding going > on. In other windows, I'm compiling, reading email, etc. with no > noticeable problems. > > If I fire up lguest and leave it sitting at a shell prompt for a > couple moments,

Interesting interaction between lguest and CFS

With 2.6.22-rc3-mm1, I've got a long-running video transcoding going on. In other windows, I'm compiling, reading email, etc. with no noticeable problems. If I fire up lguest and leave it sitting at a shell prompt for a couple moments, when I return to type something at the prompt, it can take

Interesting interaction between lguest and CFS

With 2.6.22-rc3-mm1, I've got a long-running video transcoding going on. In other windows, I'm compiling, reading email, etc. with no noticeable problems. If I fire up lguest and leave it sitting at a shell prompt for a couple moments, when I return to type something at the prompt, it can take

Re: Interesting interaction between lguest and CFS

* Matt Mackall [EMAIL PROTECTED] wrote: With 2.6.22-rc3-mm1, I've got a long-running video transcoding going on. In other windows, I'm compiling, reading email, etc. with no noticeable problems. If I fire up lguest and leave it sitting at a shell prompt for a couple moments, when I

Re: Interesting interaction between lguest and CFS

* Matt Mackall [EMAIL PROTECTED] wrote: With 2.6.22-rc3-mm1, I've got a long-running video transcoding going on. In other windows, I'm compiling, reading email, etc. with no noticeable problems. If I fire up lguest and leave it sitting at a shell prompt for a couple moments, when I

Re: Interesting interaction between lguest and CFS

On Mon, Jun 04, 2007 at 07:54:36PM +0200, Ingo Molnar wrote: * Matt Mackall [EMAIL PROTECTED] wrote: With 2.6.22-rc3-mm1, I've got a long-running video transcoding going on. In other windows, I'm compiling, reading email, etc. with no noticeable problems. If I fire up lguest and

Re: Interesting interaction between lguest and CFS

On Mon, Jun 04, 2007 at 08:11:51PM +0200, Ingo Molnar wrote: * Matt Mackall [EMAIL PROTECTED] wrote: With 2.6.22-rc3-mm1, I've got a long-running video transcoding going on. In other windows, I'm compiling, reading email, etc. with no noticeable problems. If I fire up lguest and

Re: Interesting interaction between lguest and CFS

* Matt Mackall [EMAIL PROTECTED] wrote: btw., does this only happen with lguest, or with other idle shells too? Only noticed with lguest. ah, so both the shell and the 'competing' CPU hog was running within the same lguest instance? Ingo - To unsubscribe from this list: send

Re: Interesting interaction between lguest and CFS

On Mon, Jun 04, 2007 at 09:12:29PM +0200, Ingo Molnar wrote: * Matt Mackall [EMAIL PROTECTED] wrote: btw., does this only happen with lguest, or with other idle shells too? Only noticed with lguest. ah, so both the shell and the 'competing' CPU hog was running within the same

Re: Interesting interaction between lguest and CFS

* Matt Mackall [EMAIL PROTECTED] wrote: ah, so both the shell and the 'competing' CPU hog was running within the same lguest instance? No. The CPU hog is running in the host. A single instance of lguest using busybox is started in another shell. When it reaches a shell prompt,

Re: Interesting interaction between lguest and CFS

On Mon, Jun 04, 2007 at 09:40:38PM +0200, Ingo Molnar wrote: * Matt Mackall [EMAIL PROTECTED] wrote: ah, so both the shell and the 'competing' CPU hog was running within the same lguest instance? No. The CPU hog is running in the host. A single instance of lguest using

Re: Interesting interaction between lguest and CFS

* Matt Mackall [EMAIL PROTECTED] wrote: So I sent you everything but the stats for the CPU hog. ok, thx. I suggest you try this yourself [...] yep, i know how to use lguest and i'm already running it :) But i cannot trigger the problem, that's why i was curious about your host-side stats.

Re: Interesting interaction between lguest and CFS

On Mon, 4 Jun 2007, Ingo Molnar wrote: perhaps lguest does something unusual when it idles? Does it fiddle sched_clock() in any way? One of the lguest processes calls nice(2), which seems like a long shot, but also not impossibly related. (Note that newer patches in the lguest queue remove

Re: Interesting interaction between lguest and CFS

* Ingo Molnar [EMAIL PROTECTED] wrote: I suggest you try this yourself [...] yep, i know how to use lguest and i'm already running it :) But i cannot trigger the problem, that's why i was curious about your host-side stats. i can run a hundred CPU hogs on the host and the lguest

Re: Interesting interaction between lguest and CFS

* James Morris [EMAIL PROTECTED] wrote: On Mon, 4 Jun 2007, Ingo Molnar wrote: perhaps lguest does something unusual when it idles? Does it fiddle sched_clock() in any way? One of the lguest processes calls nice(2), which seems like a long shot, but also not impossibly related.

Re: Interesting interaction between lguest and CFS

On Mon, Jun 04, 2007 at 12:37:10PM -0500, Matt Mackall wrote: With 2.6.22-rc3-mm1, I've got a long-running video transcoding going on. In other windows, I'm compiling, reading email, etc. with no noticeable problems. If I fire up lguest and leave it sitting at a shell prompt for a couple

Re: Interesting interaction between lguest and CFS

On Mon, 2007-06-04 at 12:37 -0500, Matt Mackall wrote: With 2.6.22-rc3-mm1, I've got a long-running video transcoding going on. In other windows, I'm compiling, reading email, etc. with no noticeable problems. If I fire up lguest and leave it sitting at a shell prompt for a couple moments,

Re: Interesting interaction between lguest and CFS

On Tue, 05 Jun 2007 11:02:00 +1000 Rusty Russell [EMAIL PROTECTED] wrote: See b791072ba3c3b29bab1890963bde52eb944a8451 for the changes in question. Hmm, I thought that was only supposed to happen for interruptless consoles? The comment certainly says it only applies to polled mode. --

Re: Interesting interaction between lguest and CFS

On Mon, 2007-06-04 at 17:58 -0500, Olof Johansson wrote: On Mon, Jun 04, 2007 at 12:37:10PM -0500, Matt Mackall wrote: With 2.6.22-rc3-mm1, I've got a long-running video transcoding going on. In other windows, I'm compiling, reading email, etc. with no noticeable problems. If I fire up

Re: Interesting interaction between lguest and CFS

On Tue, Jun 05, 2007 at 11:02:00AM +1000, Rusty Russell wrote: On Mon, 2007-06-04 at 17:58 -0500, Olof Johansson wrote: Is this on hvc console? The hvc driver was recently modified to back off it's timing interval when there's no input, the max value is 2 seconds. See

Re: Interesting interaction between lguest and CFS

On Tue, 2007-06-05 at 10:19 +1000, Rusty Russell wrote: On Mon, 2007-06-04 at 12:37 -0500, Matt Mackall wrote: With 2.6.22-rc3-mm1, I've got a long-running video transcoding going on. In other windows, I'm compiling, reading email, etc. with no noticeable problems. If I fire up lguest

Re: Interesting interaction between lguest and CFS

On Tue, Jun 05, 2007 at 10:18:54AM +1000, Rusty Russell wrote: On Mon, 2007-06-04 at 12:37 -0500, Matt Mackall wrote: With 2.6.22-rc3-mm1, I've got a long-running video transcoding going on. In other windows, I'm compiling, reading email, etc. with no noticeable problems. If I fire up

Re: Interesting interaction between lguest and CFS

On Tue, Jun 05, 2007 at 12:31:15PM +1000, Rusty Russell wrote: Does this solve it for you? Nope. Doesn't accept input and hogs the CPU with lots of system time. -- Mathematics is the supreme nostalgia of our time. - To unsubscribe from this list: send the line unsubscribe linux-kernel in the

Re: Interesting interaction between lguest and CFS

On Mon, 2007-06-04 at 23:18 -0500, Matt Mackall wrote: On Tue, Jun 05, 2007 at 12:31:15PM +1000, Rusty Russell wrote: Does this solve it for you? Nope. Doesn't accept input and hogs the CPU with lots of system time. Dumb question: did you replace both the module and the launcher? Rusty.