Re: [Cluster-devel] About locking granularity of gfs2

2018-04-23 Thread Guoqing Jiang
Hi Steve, Thanks for your reply. On 04/24/2018 11:03 AM, Steven Whitehouse wrote: Hi, On 24/04/18 03:52, Guoqing Jiang wrote: Hi, Since gfs2 can "allow parallel allocation from different nodes simultaneously as the locking granularity is one lock per resource group" per section 3.2 of

Re: [Cluster-devel] About locking granularity of gfs2

2018-04-23 Thread Steven Whitehouse
Hi, On 24/04/18 03:52, Guoqing Jiang wrote: Hi, Since gfs2 can "allow parallel allocation from different nodes simultaneously as the locking granularity is one lock per resource group" per section 3.2 of [1]. Could it possible to make the locking granularity also applies to R/W IO? Then,

[Cluster-devel] About locking granularity of gfs2

2018-04-23 Thread Guoqing Jiang
Hi, Since gfs2 can "allow parallel allocation from different nodes simultaneously as the locking granularity is one lock per resource group" per section 3.2 of [1]. Could it possible to make the locking granularity also applies to R/W IO? Then, with the help of "sunit" and "swidth", we