Re: [ceph-users] TRIM/Discard on SSDs with BlueStore

2017-06-27 Thread Christian Balzer
On Tue, 27 Jun 2017 14:07:24 +0200 Dan van der Ster wrote: > On Tue, Jun 27, 2017 at 1:56 PM, Christian Balzer wrote: > > On Tue, 27 Jun 2017 13:24:45 +0200 (CEST) Wido den Hollander wrote: > > > >> > Op 27 juni 2017 om 13:05 schreef Christian Balzer : > >> > > >> > > >> > On Tue, 27 Jun 2017 1

Re: [ceph-users] TRIM/Discard on SSDs with BlueStore

2017-06-27 Thread Dan van der Ster
On Tue, Jun 27, 2017 at 1:56 PM, Christian Balzer wrote: > On Tue, 27 Jun 2017 13:24:45 +0200 (CEST) Wido den Hollander wrote: > >> > Op 27 juni 2017 om 13:05 schreef Christian Balzer : >> > >> > >> > On Tue, 27 Jun 2017 11:24:54 +0200 (CEST) Wido den Hollander wrote: >> > >> > > Hi, >> > > >> > >

Re: [ceph-users] TRIM/Discard on SSDs with BlueStore

2017-06-27 Thread Wido den Hollander
> Op 27 juni 2017 om 13:56 schreef Christian Balzer : > > > On Tue, 27 Jun 2017 13:24:45 +0200 (CEST) Wido den Hollander wrote: > > > > Op 27 juni 2017 om 13:05 schreef Christian Balzer : > > > > > > > > > On Tue, 27 Jun 2017 11:24:54 +0200 (CEST) Wido den Hollander wrote: > > > > > > > Hi

Re: [ceph-users] TRIM/Discard on SSDs with BlueStore

2017-06-27 Thread Christian Balzer
On Tue, 27 Jun 2017 13:24:45 +0200 (CEST) Wido den Hollander wrote: > > Op 27 juni 2017 om 13:05 schreef Christian Balzer : > > > > > > On Tue, 27 Jun 2017 11:24:54 +0200 (CEST) Wido den Hollander wrote: > > > > > Hi, > > > > > > I've been looking in the docs and the source code of BlueStore

Re: [ceph-users] TRIM/Discard on SSDs with BlueStore

2017-06-27 Thread Wido den Hollander
> Op 27 juni 2017 om 13:26 schreef Mark Nelson : > > > > > On 06/27/2017 06:24 AM, Wido den Hollander wrote: > > > >> Op 27 juni 2017 om 13:05 schreef Christian Balzer : > >> > >> > >> On Tue, 27 Jun 2017 11:24:54 +0200 (CEST) Wido den Hollander wrote: > >> > >>> Hi, > >>> > >>> I've been look

Re: [ceph-users] TRIM/Discard on SSDs with BlueStore

2017-06-27 Thread Mark Nelson
On 06/27/2017 06:24 AM, Wido den Hollander wrote: Op 27 juni 2017 om 13:05 schreef Christian Balzer : On Tue, 27 Jun 2017 11:24:54 +0200 (CEST) Wido den Hollander wrote: Hi, I've been looking in the docs and the source code of BlueStore to figure out if it issues TRIM/Discard [0] on SSD

Re: [ceph-users] TRIM/Discard on SSDs with BlueStore

2017-06-27 Thread Wido den Hollander
> Op 27 juni 2017 om 13:05 schreef Christian Balzer : > > > On Tue, 27 Jun 2017 11:24:54 +0200 (CEST) Wido den Hollander wrote: > > > Hi, > > > > I've been looking in the docs and the source code of BlueStore to figure > > out if it issues TRIM/Discard [0] on SSDs and I haven't been able to f

Re: [ceph-users] TRIM/Discard on SSDs with BlueStore

2017-06-27 Thread Stefan Priebe - Profihost AG
Am 27.06.2017 um 13:05 schrieb Christian Balzer: > On Tue, 27 Jun 2017 11:24:54 +0200 (CEST) Wido den Hollander wrote: > >> Hi, >> >> I've been looking in the docs and the source code of BlueStore to figure out >> if it issues TRIM/Discard [0] on SSDs and I haven't been able to find an >> answer

Re: [ceph-users] TRIM/Discard on SSDs with BlueStore

2017-06-27 Thread Christian Balzer
On Tue, 27 Jun 2017 11:24:54 +0200 (CEST) Wido den Hollander wrote: > Hi, > > I've been looking in the docs and the source code of BlueStore to figure out > if it issues TRIM/Discard [0] on SSDs and I haven't been able to find an > answer. > > Does BlueStore/BlueFS issue these commands to give

[ceph-users] TRIM/Discard on SSDs with BlueStore

2017-06-27 Thread Wido den Hollander
Hi, I've been looking in the docs and the source code of BlueStore to figure out if it issues TRIM/Discard [0] on SSDs and I haven't been able to find an answer. Does BlueStore/BlueFS issue these commands to give back the space to the underlying device? For SSDs it improves both write performa