Re: [Cluster-devel] [GFS2 PATCH] GFS2: Don't add rgrp glocks to the lru

2015-06-15 Thread Steven Whitehouse
Hi, On 12/06/15 19:29, Bob Peterson wrote: Hi, The glocks used for resource groups often come and go hundreds of thousands of times per second. Adding them to the lru list just adds unnecessary contention for the lru_lock spin_lock, especially considering we're almost certainly going to re-use

[Cluster-devel] [GFS2 PATCH] GFS2: Don't add rgrp glocks to the lru

2015-06-12 Thread Bob Peterson
Hi, The glocks used for resource groups often come and go hundreds of thousands of times per second. Adding them to the lru list just adds unnecessary contention for the lru_lock spin_lock, especially considering we're almost certainly going to re-use the glock and take it back off the lru