glusterfs.git/libglusterfs/src/tw.c, branch v3.7.16 GlusterFS is a distributed file-system capable of scaling to several petabytes. It aggregates various storage bricks over Infiniband RDMA or TCP/IP interconnect into one large parallel network file system. core: Global timer-wheel 2015-05-10T12:27:40+00:00 Venky Shankar vshankar@redhat.com 2015-04-24T04:40:35+00:00 1a217b2a0295ca4d9068ee5c17d6a4374cc5f8fc Instantiate a process wide global instance of the timer wheel data structure. Spawning glusterfs* process with option arg "--global-timer-wheel" instantiates a global instance of timer-wheel under global context (->ctx). Translators can make use of this process wide instance [via a call to glusterfs_global_timer_wheel()] instead of maintaining an instance of their own and possibly consuming more memory. Linux kernel too has a single instance of timer wheel where subsystems such as IO, networking, etc.. make use of. Bitrot daemon would be early consumers of this: bitrot translator instances for multiple volumes would track objects belonging to their respective bricks in this global expiry tracking data structure. This is also a first step to move GlusterFS timer mechanism to use timer-wheel. > Change-Id: Ie882df607e07acaced846ea269ebf1ece306d6ae > BUG: 1170075 > Signed-off-by: Venky Shankar <vshankar@redhat.com> > Reviewed-on: http://review.gluster.org/10380 > Tested-by: NetBSD Build System > Reviewed-by: Vijay Bellur <vbellur@redhat.com> > Tested-by: Gluster Build System <jenkins@build.gluster.com> Change-Id: I35c840daa9996a059699f8ea5af54c76ede7e09c Signed-off-by: Venky Shankar <vshankar@redhat.com> Signed-off-by: Gaurav Kumar Garg <ggarg@redhat.com> BUG: 1220041 Reviewed-on: http://review.gluster.org/10716 Tested-by: Gluster Build System <jenkins@build.gluster.com> 
Instantiate a process wide global instance of the timer wheel
data structure. Spawning glusterfs* process with option arg
"--global-timer-wheel" instantiates a global instance of
timer-wheel under global context (->ctx).

Translators can make use of this process wide instance [via a
call to glusterfs_global_timer_wheel()] instead of maintaining
an instance of their own and possibly consuming more memory.
Linux kernel too has a single instance of timer wheel where
subsystems such as IO, networking, etc.. make use of.

Bitrot daemon would be early consumers of this: bitrot translator
instances for multiple volumes would track objects belonging to
their respective bricks in this global expiry tracking data
structure. This is also a first step to move GlusterFS timer
mechanism to use timer-wheel.

> Change-Id: Ie882df607e07acaced846ea269ebf1ece306d6ae
> BUG: 1170075
> Signed-off-by: Venky Shankar <vshankar@redhat.com>
> Reviewed-on: http://review.gluster.org/10380
> Tested-by: NetBSD Build System
> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
> Tested-by: Gluster Build System <jenkins@build.gluster.com>

Change-Id: I35c840daa9996a059699f8ea5af54c76ede7e09c
Signed-off-by: Venky Shankar <vshankar@redhat.com>
Signed-off-by: Gaurav Kumar Garg <ggarg@redhat.com>
BUG: 1220041
Reviewed-on: http://review.gluster.org/10716
Tested-by: Gluster Build System <jenkins@build.gluster.com>