From: Thomas Monjalon <thomas.monjalon@6wind.com>
To: Jianfeng Tan <jianfeng.tan@intel.com>
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH] eal: make resource initialization more robust
Date: Sun, 28 Feb 2016 22:12:46 +0100 [thread overview]
Message-ID: <2119610.dqEXMAUdDm@xps13> (raw)
In-Reply-To: <1454066522-80045-1-git-send-email-jianfeng.tan@intel.com>
Hi,
2016-01-29 19:22, Jianfeng Tan:
> Current issue: DPDK is not that friendly to container environment, which
> caused by that it pre-alloc resource like cores and hugepages. But there
> are this or that resource limitations, for examples, cgroup, rlimit,
> cpuset, etc.
>
> For cores, this patch makes use of pthread_getaffinity_np to further
> narrow down detected cores before parsing coremask (-c), corelist (-l),
> and coremap (--lcores).
>
> For hugepages, this patch adds a recover mechanism to the case that
> there are no that many hugepages can be used. It relys on a mem access
> to fault-in hugepages, and if fails with SIGBUS, recover to previously
> saved stack environment with siglongjmp().
They are some interesting ideas.
However, I am not sure a library should try to be so smart silently.
It needs more feedback to decide wether it can be the default behaviour
or an option.
Please send coremask and hugepage mapping as separate patches as they
are totally different and may be integrated separately.
Thanks
next prev parent reply other threads:[~2016-02-28 21:14 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-24 18:49 [dpdk-dev] [RFC] eal: add cgroup-aware resource self discovery Jianfeng Tan
2016-01-25 13:46 ` Neil Horman
2016-01-26 2:22 ` Tan, Jianfeng
2016-01-26 14:19 ` Neil Horman
2016-01-27 12:02 ` Tan, Jianfeng
2016-01-27 17:30 ` Neil Horman
2016-01-29 11:22 ` [dpdk-dev] [PATCH] eal: make resource initialization more robust Jianfeng Tan
2016-02-01 18:08 ` Neil Horman
2016-02-22 6:08 ` Tan, Jianfeng
2016-02-22 13:18 ` Neil Horman
2016-02-28 21:12 ` Thomas Monjalon [this message]
2016-02-29 1:50 ` Tan, Jianfeng
2016-03-04 10:05 ` [dpdk-dev] [PATCH] eal: add option --avail-cores to detect lcores Jianfeng Tan
2016-03-08 8:54 ` Panu Matilainen
2016-03-08 17:38 ` Tan, Jianfeng
2016-03-09 13:05 ` Panu Matilainen
2016-03-09 13:53 ` Tan, Jianfeng
2016-03-09 14:01 ` Ananyev, Konstantin
2016-03-09 14:17 ` Tan, Jianfeng
2016-03-09 14:44 ` Ananyev, Konstantin
2016-03-09 14:55 ` Tan, Jianfeng
2016-03-09 15:17 ` Ananyev, Konstantin
2016-03-09 17:45 ` Tan, Jianfeng
2016-03-09 19:33 ` Ananyev, Konstantin
2016-03-10 1:36 ` Tan, Jianfeng
2016-05-18 12:46 ` David Marchand
2016-05-19 2:25 ` Tan, Jianfeng
2016-06-30 13:43 ` Thomas Monjalon
2016-07-01 0:52 ` Tan, Jianfeng
2016-04-26 12:39 ` Tan, Jianfeng
2016-03-04 10:58 ` [dpdk-dev] [PATCH] eal: make hugetlb initialization more robust Jianfeng Tan
2016-03-08 1:42 ` [dpdk-dev] [PATCH v2] " Jianfeng Tan
2016-03-08 8:46 ` Tan, Jianfeng
2016-05-04 11:07 ` Sergio Gonzalez Monroy
2016-05-04 11:28 ` Tan, Jianfeng
2016-05-04 12:25 ` Sergio Gonzalez Monroy
2016-05-09 10:48 ` [dpdk-dev] [PATCH v3] " Jianfeng Tan
2016-05-10 8:54 ` Sergio Gonzalez Monroy
2016-05-10 9:11 ` Tan, Jianfeng
2016-05-12 0:44 ` [dpdk-dev] [PATCH v4] " Jianfeng Tan
2016-05-17 16:39 ` David Marchand
2016-05-18 7:56 ` Sergio Gonzalez Monroy
2016-05-18 9:34 ` David Marchand
2016-05-19 2:00 ` Tan, Jianfeng
2016-05-17 16:40 ` Thomas Monjalon
2016-05-18 8:06 ` Sergio Gonzalez Monroy
2016-05-18 9:38 ` David Marchand
2016-05-19 2:11 ` Tan, Jianfeng
2016-05-31 3:37 ` [dpdk-dev] [PATCH v5] eal: fix allocating all free hugepages Jianfeng Tan
2016-06-06 2:49 ` Pei, Yulong
2016-06-08 11:27 ` Sergio Gonzalez Monroy
2016-06-30 13:34 ` Thomas Monjalon
2016-08-31 3:07 ` [dpdk-dev] [PATCH v2] eal: restrict cores detection Jianfeng Tan
2016-08-31 15:30 ` Stephen Hemminger
2016-09-01 1:15 ` Tan, Jianfeng
2016-09-01 1:31 ` [dpdk-dev] [PATCH v3] " Jianfeng Tan
2016-09-02 16:53 ` Bruce Richardson
2016-09-16 14:04 ` Thomas Monjalon
2016-09-16 14:02 ` Thomas Monjalon
2016-12-02 17:48 ` [dpdk-dev] [PATCH v4] eal: restrict cores auto detection Jianfeng Tan
2016-12-08 18:19 ` Thomas Monjalon
2016-12-09 15:14 ` Bruce Richardson
2016-12-21 14:31 ` Thomas Monjalon
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