Reads and in both, Proxmox and therefore in guest VMs. As you can see in my messages writes seem to be more or less fine around 140 MB/s in Proxmox while reads are around 40 MB/s.
At this point I don´t know if there is something related to hardware or software, I have raised a ticket with support. Thanks! Miguel On 01/24/17 9:04 AM, Eneko Lacunza wrote: > Miguel, > > You have trouble with writes or reads? > > From Proxmox or from a guest VM? > > El 23/01/17 a las 19:39, Miguel González escribió: >> 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 > > _______________________________________________ pve-user mailing list [email protected] http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
