search for: psync

...t to me cache=none seemed most > > interesting for now because it does not cache anything in guest > > and provides strong coherence. Other modes which provide less strong > > coherence and hence are faster are yet to be benchmarked. > > > > - Three fio ioengines psync, libaio and mmap have been used. > > > > - I/O Workload of randread, radwrite, seqread and seqwrite have been run. > > > > - Each file size is 2G. Block size 4K. iodepth=16 > > > > - "multi" means same operation was done with 4 jobs and each job is >...

...t to me cache=none seemed most > > interesting for now because it does not cache anything in guest > > and provides strong coherence. Other modes which provide less strong > > coherence and hence are faster are yet to be benchmarked. > > > > - Three fio ioengines psync, libaio and mmap have been used. > > > > - I/O Workload of randread, radwrite, seqread and seqwrite have been run. > > > > - Each file size is 2G. Block size 4K. iodepth=16 > > > > - "multi" means same operation was done with 4 jobs and each job is >...

...etween dio write and punch hole, because we have extent lock to protect our operation. I ran fio to test the performance of this feature. == Hardware == CPU: Intel(R) Core(TM)2 Duo CPU E7500 @ 2.93GHz Mem: 2GB SSD: Intel X25-M 120GB (Test Partition: 60GB) == config file == [global] ioengine=psync direct=1 bs=4k size=32G runtime=60 directory=/mnt/btrfs/ filename=testfile group_reporting thread [file1] numjobs=1 # 2 4 rw=randwrite == result (KBps) == write 1 2 4 lock 24936 24738 24726 nolock 24962 30866 32101 == result (iops) == write 1 2 4 lock 6234 6184 6181 nolock 6240 7716 8025 Signed...

...behave as expected. Both are on the same small > subnet. The server is on 100BaseT and the Mac is on 802.11g > > Any suggestions would be most appreciated! I've had the same thing happen at our location. But the strange thing is that it doesn't happen everywhere. We run (ran) psync to do a backup-at-login, to psync their data up to their home directory. But some users reported their computer "hanging" soon after login. I can recreate it reliably for these users in this location, but not for anyone else. eg: it doesn't happen on my computer. It seems like th...

On 08/02/2023 11:43, Stefan Hajnoczi wrote: > On Wed, Feb 08, 2023 at 09:33:33AM +0100, Peter-Jan Gootzen wrote: >> >> >> On 07/02/2023 22:57, Vivek Goyal wrote: >>> On Tue, Feb 07, 2023 at 04:32:02PM -0500, Stefan Hajnoczi wrote: >>>> On Tue, Feb 07, 2023 at 02:53:58PM -0500, Vivek Goyal wrote: >>>>> On Tue, Feb 07, 2023 at 02:45:39PM

...xxp: Setup all VPMADT032 channels on hybrid cards. dahdi: Add functions for determining spantype (E1/T1) to include/dahdi/kernel.h dahdi: Define pr_xxx macros if not already defined. wcte12xp: Set uncollected performance counters to -1. wct4xxp: Remove unused t4_span.psync and t4_span.redalarms. wctdm24xxp: Remove fwringdetect module parameter. wctdm24xxp: Use interval for debouncing FXO polarity detection. wctdm24xxp: Use interval for debouncing FXO battery. wctdm24xxp: Use time interval for debouncing FXO ring detect. wctdm24...

...xxp: Setup all VPMADT032 channels on hybrid cards. dahdi: Add functions for determining spantype (E1/T1) to include/dahdi/kernel.h dahdi: Define pr_xxx macros if not already defined. wcte12xp: Set uncollected performance counters to -1. wct4xxp: Remove unused t4_span.psync and t4_span.redalarms. wctdm24xxp: Remove fwringdetect module parameter. wctdm24xxp: Use interval for debouncing FXO polarity detection. wctdm24xxp: Use interval for debouncing FXO battery. wctdm24xxp: Use time interval for debouncing FXO ring detect. wctdm24...