[ QUOTE ]
From: Eric Dumazet
Date: Thu, 03 Jan 2013 23:49:40 -0800
> From: Eric Dumazet
>
> In various network workloads, __do_softirq() latencies can be up
> to 20 ms if HZ=1000, and 200 ms if HZ=100.
>
> This is because we iterate 10 times in the softirq dispatcher,
> and some actions can
[ QUOTE ]
From: Eric Dumazet eric.duma...@gmail.com
Date: Thu, 03 Jan 2013 23:49:40 -0800
From: Eric Dumazet eduma...@google.com
In various network workloads, __do_softirq() latencies can be up
to 20 ms if HZ=1000, and 200 ms if HZ=100.
This is because we iterate 10 times in the softirq
From: Eric Dumazet
Date: Thu, 03 Jan 2013 23:49:40 -0800
> From: Eric Dumazet
>
> In various network workloads, __do_softirq() latencies can be up
> to 20 ms if HZ=1000, and 200 ms if HZ=100.
>
> This is because we iterate 10 times in the softirq dispatcher,
> and some actions can consume a
On Fri, 2013-01-04 at 01:12 -0800, Joe Perches wrote:
> On Fri, 2013-01-04 at 00:23 -0800, Eric Dumazet wrote:
> > On Fri, 2013-01-04 at 00:15 -0800, Joe Perches wrote:
> > > Perhaps MAX_SOFTIRQ_TIME should be
> > > #define MAX_SOFTIRQ_TIME msecs_to_jiffies(2)
> > > though it would be nicer if it
On Fri, 2013-01-04 at 00:23 -0800, Eric Dumazet wrote:
> On Fri, 2013-01-04 at 00:15 -0800, Joe Perches wrote:
> > Perhaps MAX_SOFTIRQ_TIME should be
> > #define MAX_SOFTIRQ_TIME msecs_to_jiffies(2)
> > though it would be nicer if it were a compile time constant.
>
> If you send a patch to
On Fri, 2013-01-04 at 00:15 -0800, Joe Perches wrote:
> On Thu, 2013-01-03 at 23:49 -0800, Eric Dumazet wrote:
> > In various network workloads, __do_softirq() latencies can be up
> > to 20 ms if HZ=1000, and 200 ms if HZ=100.
> > This patch changes the fallback to ksoftirqd condition to :
> > - A
On Thu, 2013-01-03 at 23:49 -0800, Eric Dumazet wrote:
> In various network workloads, __do_softirq() latencies can be up
> to 20 ms if HZ=1000, and 200 ms if HZ=100.
> This patch changes the fallback to ksoftirqd condition to :
> - A time limit of 2 ms.
[]
> diff --git a/kernel/softirq.c
On Thu, 2013-01-03 at 23:49 -0800, Eric Dumazet wrote:
In various network workloads, __do_softirq() latencies can be up
to 20 ms if HZ=1000, and 200 ms if HZ=100.
This patch changes the fallback to ksoftirqd condition to :
- A time limit of 2 ms.
[]
diff --git a/kernel/softirq.c
On Fri, 2013-01-04 at 00:15 -0800, Joe Perches wrote:
On Thu, 2013-01-03 at 23:49 -0800, Eric Dumazet wrote:
In various network workloads, __do_softirq() latencies can be up
to 20 ms if HZ=1000, and 200 ms if HZ=100.
This patch changes the fallback to ksoftirqd condition to :
- A time
On Fri, 2013-01-04 at 00:23 -0800, Eric Dumazet wrote:
On Fri, 2013-01-04 at 00:15 -0800, Joe Perches wrote:
Perhaps MAX_SOFTIRQ_TIME should be
#define MAX_SOFTIRQ_TIME msecs_to_jiffies(2)
though it would be nicer if it were a compile time constant.
If you send a patch to convert
On Fri, 2013-01-04 at 01:12 -0800, Joe Perches wrote:
On Fri, 2013-01-04 at 00:23 -0800, Eric Dumazet wrote:
On Fri, 2013-01-04 at 00:15 -0800, Joe Perches wrote:
Perhaps MAX_SOFTIRQ_TIME should be
#define MAX_SOFTIRQ_TIME msecs_to_jiffies(2)
though it would be nicer if it were a
From: Eric Dumazet eric.duma...@gmail.com
Date: Thu, 03 Jan 2013 23:49:40 -0800
From: Eric Dumazet eduma...@google.com
In various network workloads, __do_softirq() latencies can be up
to 20 ms if HZ=1000, and 200 ms if HZ=100.
This is because we iterate 10 times in the softirq dispatcher,
From: Eric Dumazet
In various network workloads, __do_softirq() latencies can be up
to 20 ms if HZ=1000, and 200 ms if HZ=100.
This is because we iterate 10 times in the softirq dispatcher,
and some actions can consume a lot of cycles.
This patch changes the fallback to ksoftirqd condition to
From: Eric Dumazet eduma...@google.com
In various network workloads, __do_softirq() latencies can be up
to 20 ms if HZ=1000, and 200 ms if HZ=100.
This is because we iterate 10 times in the softirq dispatcher,
and some actions can consume a lot of cycles.
This patch changes the fallback to
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