http://wiki.define-technology.com/mediawiki-1.35.0/index.php?action=history&feed=atom&title=Ceph_Rados_benchmarking 2026-05-04T18:51:19Z Revision history for this page on the wiki MediaWiki 1.35.0 http://wiki.define-technology.com/mediawiki-1.35.0/index.php?title=Ceph_Rados_benchmarking&diff=7731&oldid=prev 2015-05-22T08:27:25Z

<p>Created page with &quot;A 10-second write test on a data pool &lt;syntaxhighlight&gt; [root@ceph-node1 ~]# ceph osd lspools 0 rbd,1 pool1,2 cache-pool,4 volumes,5 images,6 backups,7 vms, [root@ceph-node1 ~]# rados b...&quot;</p> <p><b>New page</b></p><div>A 10-second write test on a data pool <br /> &lt;syntaxhighlight&gt;<br /> [root@ceph-node1 ~]# ceph osd lspools<br /> 0 rbd,1 pool1,2 cache-pool,4 volumes,5 images,6 backups,7 vms,<br /> [root@ceph-node1 ~]# rados bench -p data 10 write --no-cleanup<br /> error opening pool data: (2) No such file or directory<br /> [root@ceph-node1 ~]# rados bench -p pool1 10 write --no-cleanup<br /> Maintaining 16 concurrent writes of 4194304 bytes for up to 10 seconds or 0 objects<br /> Object prefix: benchmark_data_ceph-node1_5701<br /> sec Cur ops started finished avg MB/s cur MB/s last lat avg lat<br /> 0 0 0 0 0 0 - 0<br /> 1 16 25 9 35.9899 36 0.964923 0.663588<br /> 2 16 47 31 61.9867 88 0.641149 0.775297<br /> 3 16 73 57 75.9853 104 0.510372 0.79535<br /> 4 16 91 75 74.9866 72 0.338181 0.745966<br /> 5 16 110 94 75.1873 76 0.316483 0.763226<br /> 6 16 123 107 71.3217 52 1.39821 0.827904<br /> 7 16 142 126 71.9888 76 0.435153 0.835862<br /> 8 16 159 143 71.4891 68 0.794159 0.82537<br /> 9 16 169 153 67.9893 40 1.65146 0.84532<br /> 10 16 189 173 69.1892 80 0.934781 0.880206<br /> Total time run: 10.677784<br /> Total writes made: 190<br /> Write size: 4194304<br /> Bandwidth (MB/sec): 71.176 <br /> <br /> Stddev Bandwidth: 28.9602<br /> Max bandwidth (MB/sec): 104<br /> Min bandwidth (MB/sec): 0<br /> Average Latency: 0.890925<br /> Stddev Latency: 0.424522<br /> Max latency: 2.6072<br /> Min latency: 0.26615<br /> &lt;/syntaxhighlight&gt;<br /> Perform a sequential read benchmarking test on the data pool:<br /> &lt;syntaxhighlight&gt;<br /> [root@ceph-node1 ~]# rados bench -p pool1 10 seq<br /> sec Cur ops started finished avg MB/s cur MB/s last lat avg lat<br /> 0 0 0 0 0 0 - 0<br /> 1 16 44 28 111.883 112 0.967809 0.261794<br /> 2 16 63 47 93.9437 76 1.72344 0.471426<br /> 3 16 81 65 86.6278 72 0.572271 0.510613<br /> 4 16 107 91 90.966 104 0.791833 0.612809<br /> 5 16 136 120 95.9688 116 1.16369 0.591472<br /> 6 16 158 142 94.6388 88 0.323602 0.58421<br /> 7 16 185 169 96.5452 108 0.505959 0.582252<br /> Total time run: 7.787027<br /> Total reads made: 190<br /> Read size: 4194304<br /> Bandwidth (MB/sec): 97.598 <br /> <br /> Average Latency: 0.646829<br /> Max latency: 2.82743<br /> Min latency: 0.00551059<br /> &lt;/syntaxhighlight&gt;<br /> Perform a random read benchmarking test on the data pool:<br /> &lt;syntaxhighlight&gt;<br /> [root@ceph-node1 ~]# rados bench -p pool1 10 rand<br /> sec Cur ops started finished avg MB/s cur MB/s last lat avg lat<br /> 0 0 0 0 0 0 - 0<br /> 1 16 48 32 127.944 128 0.0116537 0.322367<br /> 2 16 89 73 145.956 164 0.427142 0.370509<br /> 3 16 125 109 145.297 144 0.796186 0.393411<br /> 4 16 167 151 150.966 1680.00915591 0.390515<br /> 5 16 209 193 154.367 168 0.369405 0.388701<br /> 6 16 245 229 152.636 144 0.97057 0.394407<br /> 7 16 283 267 152.543 152 0.0062208 0.396334<br /> 8 16 308 292 145.974 100 0.554891 0.40978<br /> 9 16 337 321 142.641 116 0.843427 0.42286<br /> 10 16 365 349 139.575 112 1.00341 0.432433<br /> 11 8 366 358 130.159 36 0.73124 0.449556<br /> Total time run: 11.110171<br /> Total reads made: 366<br /> Read size: 4194304<br /> Bandwidth (MB/sec): 131.771 <br /> <br /> Average Latency: 0.475776<br /> Max latency: 2.375<br /> Min latency: 0.00497015<br /> &lt;/syntaxhighlight&gt;</div>

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