On Mon, Jul 14, 2014 at 12:50:50PM -0700, Tim Chen wrote:
There is a generic multi-buffer infrastructure portion that manages
pulling and queuing jobs on the crypto workqueue, and it is separated out
in patch 1 of the patchset.
There's one very weird multi-line comment in that patch.
The
On Tue, Jul 15, 2014 at 11:50:45AM +0200, Peter Zijlstra wrote:
So you already have an idle notifier (which is x86 only, we should fix
that I suppose), and you then double check there really isn't anything
else running.
Note that we've already done a large part of the expense of going idle
by
On Tue, Jul 15, 2014 at 04:45:25PM +0200, Mike Galbraith wrote:
3.0.101-default3.753363 usecs/loop -- avg 3.770737 530.4 KHz 1.000
3.14.10-default4.145348 usecs/loop -- avg 4.139987 483.1 KHz.910
1.000
3.15.4-default 4.355594 usecs/loop -- avg 4.351961
On Tue, 2014-07-15 at 21:03 +0200, Peter Zijlstra wrote:
On Tue, Jul 15, 2014 at 08:06:55PM +0200, Mike Galbraith wrote:
On Tue, 2014-07-15 at 16:53 +0200, Peter Zijlstra wrote:
On Tue, Jul 15, 2014 at 04:45:25PM +0200, Mike Galbraith wrote:
3.0.101-default3.753363
On Tue, 15 Jul 2014, Tim Chen wrote:
On Tue, 2014-07-15 at 14:59 +0200, Thomas Gleixner wrote:
On Tue, 15 Jul 2014, Peter Zijlstra wrote:
On Tue, Jul 15, 2014 at 11:50:45AM +0200, Peter Zijlstra wrote:
So you already have an idle notifier (which is x86 only, we should fix
that I
On Mon, 2014-07-14 at 12:16 +0200, Peter Zijlstra wrote:
On Fri, Jul 11, 2014 at 01:33:04PM -0700, Tim Chen wrote:
This function will help a thread decide if it wants to to do work
that can be delayed, to accumulate more tasks for more efficient
batch processing later.
However, if no
On Mon, Jul 14, 2014 at 09:10:14AM -0700, Tim Chen wrote:
On Mon, 2014-07-14 at 12:16 +0200, Peter Zijlstra wrote:
On Fri, Jul 11, 2014 at 01:33:04PM -0700, Tim Chen wrote:
This function will help a thread decide if it wants to to do work
that can be delayed, to accumulate more tasks for
On Mon, 2014-07-14 at 18:14 +0200, Peter Zijlstra wrote:
On Mon, Jul 14, 2014 at 09:10:14AM -0700, Tim Chen wrote:
On Mon, 2014-07-14 at 12:16 +0200, Peter Zijlstra wrote:
On Fri, Jul 11, 2014 at 01:33:04PM -0700, Tim Chen wrote:
This function will help a thread decide if it wants to to
On Sat, 2014-07-12 at 13:25 +0400, Kirill Tkhai wrote:
+unsigned long nr_running_cpu(int cpu)
+{
+ if (cpumask_test_cpu(cpu, cpu_online_mask))
+ return cpu_rq(cpu)-nr_running;
+ else
+ return 0;
+}
+
Offline cpu should have nr_running equal to 0. We
On Mon, Jul 14, 2014 at 10:05:34AM -0700, Tim Chen wrote:
I was trying to explain why the algorithm is implemented this way
because of its batching nature.
There is a whole class of async algorithm that can provide
substantial speedup by doing batch processing and uses workqueue.
The
On Mon, 2014-07-14 at 20:17 +0200, Peter Zijlstra wrote:
On Mon, Jul 14, 2014 at 10:05:34AM -0700, Tim Chen wrote:
I was trying to explain why the algorithm is implemented this way
because of its batching nature.
There is a whole class of async algorithm that can provide
substantial
On Mon, Jul 14, 2014 at 12:08:28PM -0700, Tim Chen wrote:
On Mon, 2014-07-14 at 20:17 +0200, Peter Zijlstra wrote:
Your multi-buffer thing isn't generic either, it seems lmiited to sha1.
We actually have many other multi-buffer crypto algorithms already
published for encryption and other
On Mon, 2014-07-14 at 21:15 +0200, Peter Zijlstra wrote:
On Mon, Jul 14, 2014 at 12:08:28PM -0700, Tim Chen wrote:
On Mon, 2014-07-14 at 20:17 +0200, Peter Zijlstra wrote:
Your multi-buffer thing isn't generic either, it seems lmiited to sha1.
We actually have many other multi-buffer
On Sat, 2014-07-12 at 07:21 -0700, Tadeusz Struk wrote:
On 07/11/2014 01:33 PM, Tim Chen wrote:
+unsigned long nr_running_cpu(int cpu)
+{
+ if (cpumask_test_cpu(cpu, cpu_online_mask))
+ return cpu_rq(cpu)-nr_running;
+ else
+ return 0;
+}
+
EXPORT_SYMBOL?
On 12.07.2014 00:33, Tim Chen wrote:
This function will help a thread decide if it wants to to do work
that can be delayed, to accumulate more tasks for more efficient
batch processing later.
However, if no other tasks are running on the cpu, it can take
advantgae of the available cpu
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