Sorry I meant reads, pveperf: root@myserver:~# pveperf /vz/ CPU BOGOMIPS: 42669.12 REGEX/SECOND: 935261 HD SIZE: 1809.50 GB (/dev/mapper/pve-data) BUFFERED READS: 94.56 MB/sec AVERAGE SEEK TIME: 17.88 ms FSYNCS/SECOND: 10.15 DNS EXT: 16.93 ms DNS INT: 23.36 ms (ibertrix-node2)
from specs from the manufacturer average seek time is around 8 ms writes are like this: root@myserver:~# dd if=/dev/zero of=/mytempfile ^C15210305+0 records in 15210305+0 records out 7787676160 bytes (7.8 GB) copied, 52.1116 s, 149 MB/s performance from a VM (I have 5 VMs running in this 32 Gb RAM server) running Centos 6.8: root@vm [~]# dd if=/dev/zero of=/mytempfile ^C9360176+0 records in 9360176+0 records out 4792410112 bytes (4.8 GB) copied, 112.571 s, 42.6 MB/s The settings for virtual HD are: qcow2 and writeback cache On 01/23/17 7:02 PM, Mehmet wrote: > For datasafety i would not disable Barrier! > But do you mean realy write Performance? As i know hdparm is used for read > Performance... > > Am 23. Januar 2017 18:57:19 MEZ schrieb Michael Rasmussen <[email protected]>: >> On Mon, 23 Jan 2017 18:34:11 +0100 >> Miguel González <[email protected]> wrote: >> >>> Considering hdparm reports same speed for the underlying disk and the >>> soft raid seems some settings that need to be set. I´m asking here >> just >>> to be safe in terms of proxmox and not to be too aggressive. My >>> impression is that with ext3 I got better performance. >>> >> You can achieve the same performance and security level with ext4 as >> you did with ext3 by using this mount option: barrier=0 >> >> -- >> Hilsen/Regards >> Michael Rasmussen >> >> Get my public GnuPG keys: >> michael <at> rasmussen <dot> cc >> http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xD3C9A00E >> mir <at> datanom <dot> net >> http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xE501F51C >> mir <at> miras <dot> org >> http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xE3E80917 >> -------------------------------------------------------------- >> /usr/games/fortune -es says: >> You are here: >> *** >> *** >> ********* >> ******* >> ***** >> *** >> * >> >> But you're not all there. > _______________________________________________ > pve-user mailing list > [email protected] > http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user > _______________________________________________ pve-user mailing list [email protected] http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
