Gandalf Corvotempesta
2016-Jul-08 18:23 UTC
[Gluster-users] New cluster - first experience
2016-07-08 10:55 GMT+02:00 Gandalf Corvotempesta <gandalf.corvotempesta at gmail.com>:> Now i'm using a bonded gigabit (2x1GB) on every server but i'm still > stuck at about 15-30mbit/s when extracting the Linux kernel. Total > extraction is still about 10minutes. > Something strange is going on, on a dual gigabit connection (2000mbit) > I'm expecting to reach hundreds of megabit (200-300), not tens (15-20) > > # dd if=/dev/zero of=/mnt/glusterfs/zero4 bs=1M count=1000 > 1000+0 record dentro > 1000+0 record fuori > 1048576000 byte (1,0 GB) copiati, 88,2981 s, 11,9 MB/sNo suggestions?
Assuming this dd was run from one of the servers to a replica 3 volume, you have one localhost write and two network writes for 88 Mbit/s which looks like the maxing out of a 100Mbit connection. That is so coincidental it would lead me to look at the network. On 07/08/2016 11:23 AM, Gandalf Corvotempesta wrote:> 2016-07-08 10:55 GMT+02:00 Gandalf Corvotempesta > <gandalf.corvotempesta at gmail.com>: >> Now i'm using a bonded gigabit (2x1GB) on every server but i'm still >> stuck at about 15-30mbit/s when extracting the Linux kernel. Total >> extraction is still about 10minutes. >> Something strange is going on, on a dual gigabit connection (2000mbit) >> I'm expecting to reach hundreds of megabit (200-300), not tens (15-20) >> >> # dd if=/dev/zero of=/mnt/glusterfs/zero4 bs=1M count=1000 >> 1000+0 record dentro >> 1000+0 record fuori >> 1048576000 byte (1,0 GB) copiati, 88,2981 s, 11,9 MB/s > No suggestions? > _______________________________________________ > Gluster-users mailing list > Gluster-users at gluster.org > http://www.gluster.org/mailman/listinfo/gluster-users