-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 I did some tests, this is a single OSD server with I think 2 Intel 3500 drives and replication 1 and the results are in IOPs. I think the client was on a different host, but it has been a long time since I did this test. I adjusted the number of cores on the same box and the frequency of the processor. I also played with C-states for 1 and 8 cores. This showed me that in terms of IOPs, more cores is generally better than GHz and sometimes restricting the C-states to C1 or lower can impact performance. In the C-State chart, "All" refers to all available c-states are in use, "freq-range" refers to allowing the CPU to use any frequency between the lowest available and the frequency listed in the row. If "freq range" is not in the header, then the frequency was pinned at the frequency listed in the row. https://docs.google.com/a/leblancnet.us/spreadsheets/d/1hgXErxHTh3TiM9aZ2JQKJcFhlGWb4D5imdYNFiTIeeU/edit?usp=sharing -----BEGIN PGP SIGNATURE----- Version: Mailvelope v1.3.3 Comment: https://www.mailvelope.com wsFcBAEBCAAQBQJWn8NxCRDmVDuy+mK58QAA1x8P/iae87JmwWhT7QGMZ4iw jn7pjuW+Oqk7NRcsN1yofIAyg3FF5dm+bHqrnV8fQz8QqBwidZgOp9hVdj98 DtJtwjLlFdRrT9q7yveYRmMqj2Yv/CdpsG5YlIXUbzR2ss2UzVw4/P2rJ5jI XcaMtPcT6M9EkNoYyho/Xy9AFOZX9Yyfq2r6m8/l57gSSA6jJ3wB2Q301VGs Wo2vruomOjIAocukD0XXM9CoN1O02vlheG7K06aRphNSA1KaKDMdfv+MFaiG anthyRwQsUquWQf0J9Vje+Ee9gSf5HX6qVuNmJf8cGJNKQgK2NYgA8eN5IsG T2bZ95aIJ3XUroZyQxco7aaaMLy111rG8PLjkunRTWFgLnFv7eV99wQfXl+v fy0YpTuLULUtrOA3k2UZUPdCZbBE3w1Y5/wsOhLeHzKkXWyO+nRL9wb34/it j5Y8u1lN37YvnTQikzbvmYzgZj/OKFA+mr2SXHrB+G3g4k9arL/YDbkTOQjB G3rlbhV1DHfSq0kNis119VW/ZUvyI+PiZySp+JiH5QwQ77P1NA7/O3V3qECC tnUdMO8/wg97XF2xY6wDfEgD+EflqrUW3v9Pm1SSk3OMVLn+357tcL9IxaRM +pXRCdw1VbeFn2ITKu+h8GiyGrY+CctNRB9rxeHJ9uMyhh+DcRUFXLAQf0YO gvUX =E4LJ -----END PGP SIGNATURE----- ---------------- Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Wed, Jan 20, 2016 at 2:01 AM, Götz Reinicke - IT Koordinator <goetz.reinicke@xxxxxxxxxxxxxxx> wrote: > Hi folks, > > we plan to use more ssd OSDs in our first cluster layout instead of SAS > osds. (more IO is needed than space) > > short question: What would influence the performance more? more Cores or > more GHz/Core. > > Or is it as always: Depeds on the total of OSDs/nodes/repl-level/etc ... :) > > If needed, I can give some more detailed information on the layout. > > Thansk for feedback . Götz > -- > Götz Reinicke > IT-Koordinator > > Tel. +49 7141 969 82420 > E-Mail goetz.reinicke@xxxxxxxxxxxxxxx > > Filmakademie Baden-Württemberg GmbH > Akademiehof 10 > 71638 Ludwigsburg > www.filmakademie.de > > Eintragung Amtsgericht Stuttgart HRB 205016 > > Vorsitzender des Aufsichtsrats: Jürgen Walter MdL > Staatssekretär im Ministerium für Wissenschaft, > Forschung und Kunst Baden-Württemberg > > Geschäftsführer: Prof. Thomas Schadt > > > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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