Dan,
Does this patch solve the performance problem in freeing all
the objhash entries upfront (e.g. before letting userspace
resume) ?
If so, is there still a performance hit for doing the 'clear'
portion early before resuming the tasks ? How much does it
depend on the complexity of the
Matt,
This is v2, right ?
If so, is there a changelog ?
Oren.
On 09/23/2010 05:53 PM, Matt Helsley wrote:
This series enables the relinking of unlinked files for the purpose of
enabling checkpoint/restart of tasks with open unlinked files. It
relies on Namhyung Kim's sys-wrapper patches to
OL Does this patch solve the performance problem in freeing all
OL the objhash entries upfront (e.g. before letting userspace
OL resume) ?
OL If so, is there still a performance hit for doing the 'clear'
OL portion early before resuming the tasks ? How much does it
OL depend on the complexity
On 11/01/2010 01:01 PM, Dan Smith wrote:
OL Does this patch solve the performance problem in freeing all
OL the objhash entries upfront (e.g. before letting userspace
OL resume) ?
OL If so, is there still a performance hit for doing the 'clear'
OL portion early before resuming the tasks ?
On 09/17/2010 04:23 PM, Nathan Lynch wrote:
On Thu, 2010-09-16 at 20:44 -0400, Oren Laadan wrote:
On 09/14/2010 04:02 PM, Nathan Lynch wrote:
Support checkpoint and restore of both private and shared
hugepage-backed mappings established via mmap(MAP_HUGETLB). Introduce
APIs for checkpoint
On 10/06/2010 03:43 PM, Nathan Lynch wrote:
On Thu, 2010-09-16 at 20:37 -0400, Oren Laadan wrote:
Hi Nathan,
Thanks for the patch series. For starters, I'll pull
patches 1-3 for ckpt-v22-dev. I'll wait for reviews
for the others.
Well, reviews haven't exactly been pouring in, but I'm
On 10/30/2010 03:01 AM, Sukadev Bhattiprolu wrote:
From ce9dd2fc7332597d46872f3f8c52ac0806f381d1 Mon Sep 17 00:00:00 2001
From: Sukadev Bhattiprolu suka...@linux.vnet.ibm.com
Date: Fri, 29 Oct 2010 23:16:10 -0700
Subject: [PATCH 1/1] Mark ghost task as detached earlier
During restart() of
OL So to be clear: is there a performance issue due to moving the
OL cleanup - some or all - to before allowing tasks to resume ?
OL (This is what I understood over IRC).
Not that I have been able to measure, no.
--
Dan Smith
IBM Linux Technology Center
email: da...@us.ibm.com
Greg Thelen wrote:
Ciju Rajan K c...@linux.vnet.ibm.com writes:
Greg Thelen wrote:
Replace usage of the mem_cgroup_update_file_mapped() memcg
statistic update routine with two new routines:
* mem_cgroup_inc_page_stat()
* mem_cgroup_dec_page_stat()
As before, only the file_mapped
On Mon, Nov 01, 2010 at 12:38:23PM -0400, Oren Laadan wrote:
Matt,
This is v2, right ?
Nope. I'm still getting ready to post v2.
Cheers,
-Matt
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On Mon, 2010-11-01 at 20:15 +0100, Jiri Olsa wrote:
hi,
the rcu_dereference_check is defined as
#define rcu_dereference_check(p, c) \
__rcu_dereference_check((p), rcu_read_lock_held() || (c), __rcu)
so the caller does not need to specify rcu_read_lock_held() condition.
On Sat, Oct 30, 2010 at 2:35 PM, Jesper Juhl j...@chaosbits.net wrote:
Hi,
We can avoid doing a memset in swap_cgroup_swapon() by using vzalloc().
Signed-off-by: Jesper Juhl j...@chaosbits.net
Acked-by: Paul Menage men...@google.com
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On Tue, Nov 2, 2010 at 4:35 AM, Jesper Juhl j...@chaosbits.net wrote:
Hi (please CC me on replies),
In mem_cgroup_alloc() we currently do either kmalloc() or vmalloc() then
followed by memset() to zero the memory. This can be more efficiently
achieved by using kzalloc() and vzalloc().
On Tue, Nov 2, 2010 at 4:59 AM, Jesper Juhl j...@chaosbits.net wrote:
On Mon, 1 Nov 2010, Johannes Weiner wrote:
On Mon, Nov 01, 2010 at 08:40:56PM +0100, Jesper Juhl wrote:
Hi (please CC me on replies),
Apologies to those who receive this multiple times. I screwed up the To:
field in
* Jesper Juhl j...@chaosbits.net [2010-11-01 20:40:56]:
Hi (please CC me on replies),
Apologies to those who receive this multiple times. I screwed up the To:
field in my original mail :-(
In mem_cgroup_alloc() we currently do either kmalloc() or vmalloc() then
followed by memset()
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