imapsync very poor performance

[Christian Hügel]

Hi Matt, hi Franz,

I have remounted all partitions with the option *noatime*
and now it works!!!
thank you so much for your support.

Cheers,

Christian

Am 03-12-2013 03:09, schrieb Matt Moldvan:
> In your mount options, try using the "noatime" option.  You can 
> probably
> apply this with a "mount -o remount,noatime /dev/something 
> /mnt/somewhere",
> then restart dovecot for fun and try again.  Is the original system you 
> are
> having trouble with also a VM?  If so, change to scheduler for the disk
> drive it's mounted on to "noop":
> 
> [someone at somewhere #] cat /sys/block/somedrive/queue/scheduler
> noop deadline [cfq]
> [someone at somewhere #] echo noop > /sys/block/somedrive/queue/scheduler
> [someone at somewhere #] cat /sys/block/somedrive/queue/scheduler
> [noop] deadline cfq
> 
> 
> On Mon, Dec 2, 2013 at 7:26 PM, Franz Skale <i.bin at dah.am> wrote:
> 
>> Check your filesystem and I/O errors in dmesg. Check for the maildirs.
>> A punch of posibilities.
>> 
>> 
>> Rgds Franz
>> 
>> Telepathisch gesendet
>> 
>> Am 03.12.2013 um 00:24 schrieb Christian Hügel <
>> christian.huegel at stonebyte.de>:
>> 
>> > Thx, I get a bunch of errors like this one:
>> >
>> > [pid  6801] <... read resumed> "121 SELECT INBOX.User\r\n", 1639) = 24
>> > [pid  6800] <... read resumed> 0x17189520, 5) = -1 EAGAIN (Resource
>> > temporarily unavailable)
>> > [pid  6801] close(14 <unfinished ...>
>> > [pid  6800] epoll_wait(8,  <unfinished ...>
>> > [pid  6801] <... close resumed> )       = 0
>> >
>> >
>> > Am 02.12.2013 23:46, schrieb Franz Skale:
>> >> strace -f -s 16384 dovecot -F 2>/tmp/dovecot.debug
>> >
>> > --