Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756730Ab1CGWxn (ORCPT ); Mon, 7 Mar 2011 17:53:43 -0500 Received: from smtp-out.google.com ([74.125.121.67]:45585 "EHLO smtp-out.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756573Ab1CGWxm (ORCPT ); Mon, 7 Mar 2011 17:53:42 -0500 DomainKey-Signature: a=rsa-sha1; s=beta; d=google.com; c=nofws; q=dns; h=from:to:cc:subject:date:message-id:x-mailer; b=p5/0MsnFp9cbHQGblfhe2eE+tDGWyP/WawSCJTm4Q4WCIu/8kTbvWW8V9OAcayaqp pLrexvNCeQpRXfakk37CQ== From: Justin TerAvest To: vgoyal@redhat.com, jaxboe@fusionio.com Cc: ctalbott@google.com, guijianfeng@cn.fujitsu.com, linux-kernel@vger.kernel.org, Justin TerAvest Subject: [PATCH] blk-cgroup: Lower minimum weight from 100 to 10. Date: Mon, 7 Mar 2011 14:53:14 -0800 Message-Id: <1299538394-9669-1-git-send-email-teravest@google.com> X-Mailer: git-send-email 1.7.3.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1619 Lines: 42 We've found that we still get good, useful isolation at weights this low. I'd like to adjust the minimum so that any other changes can take these values into account. --- Documentation/cgroups/blkio-controller.txt | 2 +- block/blk-cgroup.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/Documentation/cgroups/blkio-controller.txt b/Documentation/cgroups/blkio-controller.txt index 4ed7b5c..24314fd 100644 --- a/Documentation/cgroups/blkio-controller.txt +++ b/Documentation/cgroups/blkio-controller.txt @@ -140,7 +140,7 @@ Proportional weight policy files - Specifies per cgroup weight. This is default weight of the group on all the devices until and unless overridden by per device rule. (See blkio.weight_device). - Currently allowed range of weights is from 100 to 1000. + Currently allowed range of weights is from 10 to 1000. - blkio.weight_device - One can specify per cgroup per device rules using this interface. diff --git a/block/blk-cgroup.h b/block/blk-cgroup.h index ea4861b..57e7234 100644 --- a/block/blk-cgroup.h +++ b/block/blk-cgroup.h @@ -240,7 +240,7 @@ static inline char *blkg_path(struct blkio_group *blkg) { return NULL; } #endif -#define BLKIO_WEIGHT_MIN 100 +#define BLKIO_WEIGHT_MIN 10 #define BLKIO_WEIGHT_MAX 1000 #define BLKIO_WEIGHT_DEFAULT 500 -- 1.7.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/