Categories

  • All news regarding Xen and XCP-ng ecosystem

    142 Topics
    4k Posts
    rzrR
    Thank you every visitors and for those who did not had the chance to visit fosdem check this report: https://xcp-ng.org/blog/2026/02/19/fosdem-2026-follow-up/ [image: vates-xcp-ng-at-fosdem-2026-1.webp] One question, I promised to forward to the forum, how many VM are you running on XCP-ng ? Dozen, hundreds, thousands or more ?

  • Everything related to the virtualization platform

    1k Topics
    14k Posts
    olivierlambertO
    Check the disk scheduler on the Dom0 for this drive.

  • All Xen Orchestra related questions/reports

    3k Topics
    27k Posts
    pdoniasP
    @acebmxer Thanks for the report, we'll check that! Regarding themes, it will remain non-persistent until we implement the full theme system. @jacob.becker Thanks for the detailed feedback, we'll see how we can improve that

  • Our hyperconverged storage solution

    40 Topics
    715 Posts
    I
    @ronan-a Thanks

  • Non-English speakers

    32 Topics
    93 Posts
    J
    @olivierlambert Je corrige le test FIO qui ne reflète pas la réalité. Le débit est d'environ 5.5Gbps/s throughput-test-job: (groupid=0, jobs=4): err= 0: pid=2452: Fri Feb 20 10:02:44 2026 read: IOPS=10.3k, BW=646MiB/s (677MB/s)(75.7GiB/120002msec) slat (nsec): min=0, max=230384k, avg=183401.87, stdev=705796.53 clat (usec): min=1227, max=252507, avg=11943.41, stdev=5670.46 lat (usec): min=1357, max=252514, avg=12126.82, stdev=5722.82 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 11], | 30.00th=[ 11], 40.00th=[ 12], 50.00th=[ 12], 60.00th=[ 12], | 70.00th=[ 13], 80.00th=[ 14], 90.00th=[ 15], 95.00th=[ 16], | 99.00th=[ 19], 99.50th=[ 20], 99.90th=[ 23], 99.95th=[ 241], | 99.99th=[ 247] bw ( KiB/s): min=347392, max=848640, per=100.00%, avg=661471.87, stdev=15968.62, samples=956 iops : min= 5428, max=13260, avg=10335.50, stdev=249.51, samples=956 write: IOPS=10.3k, BW=646MiB/s (677MB/s)(75.7GiB/120002msec); 0 zone resets slat (nsec): min=0, max=230979k, avg=199173.27, stdev=642430.39 clat (usec): min=1057, max=257260, avg=12446.58, stdev=5587.92 lat (usec): min=1349, max=257596, avg=12645.76, stdev=5633.93 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 11], | 30.00th=[ 12], 40.00th=[ 12], 50.00th=[ 12], 60.00th=[ 13], | 70.00th=[ 13], 80.00th=[ 14], 90.00th=[ 16], 95.00th=[ 17], | 99.00th=[ 20], 99.50th=[ 21], 99.90th=[ 24], 99.95th=[ 40], | 99.99th=[ 247] bw ( KiB/s): min=339968, max=829184, per=100.00%, avg=661765.89, stdev=15966.89, samples=956 iops : min= 5312, max=12956, avg=10340.09, stdev=249.48, samples=956 lat (msec) : 2=0.01%, 4=0.01%, 10=10.97%, 20=88.57%, 50=0.40% lat (msec) : 250=0.05%, 500=0.01% cpu : usr=1.26%, sys=13.37%, ctx=2934238, majf=0, minf=51 IO depths : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=0.1%, >=64=100.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.1%, >=64=0.0% issued rwts: total=1239575,1240247,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=64 Run status group 0 (all jobs): READ: bw=646MiB/s (677MB/s), 646MiB/s-646MiB/s (677MB/s-677MB/s), io=75.7GiB (81.2GB), run=120002-120002msec WRITE: bw=646MiB/s (677MB/s), 646MiB/s-646MiB/s (677MB/s-677MB/s), io=75.7GiB (81.3GB), run=120002-120002msec Disk stats (read/write): dm-3: ios=1238448/1239080, merge=0/0, ticks=1874753/2464217, in_queue=4338970, util=99.99%, aggrios=2479429/2480865, aggrmerge=0/48, aggrticks=3199165/4352700, aggrin_queue=7551881, aggrutil=81.90% xvda: ios=2479429/2480865, merge=0/48, ticks=3199165/4352700, in_queue=7551881, util=81.90%