[Ocfs2-devel] [Ocfs2-users] o2locktop introduction

[Guozhonghua]

Good News.

Thanks.


> -----邮件原件-----
> 发件人: ocfs2-users-bounces at oss.oracle.com
> [mailto:ocfs2-users-bounces at oss.oracle.com] 代表 Gang He
> 发送时间: 2019年3月20日 18:07
> 收件人: ocfs2-devel at oss.oracle.com; ocfs2-tools-devel at oss.oracle.com;
> ocfs2-users at oss.oracle.com
> 主题: [Ocfs2-users] o2locktop introduction
> 
> Hello Guys,
> 
> We wrote a tool with Python, which is used to display DLM lock usages in a OCFS2
> cluster.
> o2locktop is a top-like OCFS2 DLM lock monitor, it displays DLM lock usages via
> querying OCFS2 file system statistics from the specified nodes.
> Therefore, OCFS2 kernel modules must enable OCFS2_FS_STATS configuration
> option when compiling.
> If you want to know if the current OCFS2 kernel modules enable OCFS2_FS_STATS
> setting, you can refer to /boot/config-`uname -r` file.
> You can utilize o2locktop to detect the hot files/directories, whose DLM locks are
> frequently referenced among the cluster.
> You can get the maximal wait time per DLM lock, this helps you identify which hot
> files/directories should be decoupled for improving file access performance.
> For more details, please visit the link
> https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_ganghe_o2lockt
> op&d=DwIFAg&c=RoP1YumCXCgaWHvlZYR8PZh8Bv7qIrMUB65eapI_JnE&r=wXmkJN
> AUtutY0U9inuQWCbzSSRji5zLpyR0a_Mek4jM&m=93wGE0zLoHuCKph4-kgDwzuZm9
> oc1J4Mhz9PxVbVxZc&s=lVluTYcXetvTd2GFdOJLcqDtQcWFhVrDY5I6MI1r_Ow&e=
> This tool is expected to be used for SUSE customer, if you are interested, welcome
> to use, to contribute, suggestions, etc.
> 
> Thanks a lot.
> Gang
> 
> 
> 
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