On Wed, Jul 13, 2016 at 4:47 PM, Gandalf Corvotempesta < [email protected]> wrote:
> 2016-07-13 10:24 GMT+02:00 Pranith Kumar Karampuri <[email protected]>: > > We are in the process of making shard available for general purpose > > usecases. > > Any ETA? > Design hasn't finalized so hard to tell. > > Anyway, i did another test. This time the "client" has 4 bonded > gigabit nic (balance-rr) and each server has 2 bonded gigabit nic > (balance-rr). (previously i had an issue with bonding on our switch) > > With sharding (64MB): > # echo 3 > /proc/sys/vm/drop_caches; dd if=/dev/zero of=test bs=1M > count=1000 conv=fsync > 1000+0 record dentro > 1000+0 record fuori > 1048576000 byte (1,0 GB) copiati, 89,2066 s, 11,8 MB/s > > > Without sharding: > # echo 3 > /proc/sys/vm/drop_caches; dd if=/dev/zero of=test bs=1M > count=1000 conv=fsync > 1000+0 record dentro > 1000+0 record fuori > 1048576000 byte (1,0 GB) copiati, 17,759 s, 59,0 MB/s > > WOW! But still far away from HDD speed (about 120MB/s) > > > With 4 bonded nic, I have 4000gbit of bandwidth. > 4000/8 = 500MB/s > With this configuration gluster should be able to write at full speed > on 3 nodes at once. > Each node has 2000/8 = 250MB/s of bandwidth, twice the hdd speed. > If you do a plain nfs mount of the brick without any gluster in picture what is the speed you get? -- Pranith
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