Whamcloud Community JIRA https://jira.whamcloud.com This file is an XML representation of an issue en-us 9.4.14 940014 05-12-2023 [LU-291] echo client to use obd_brw_async https://jira.whamcloud.com/browse/LU-291 Lustre <p>Right now the echo_client is using obd_brw(), preventing it from getting multiple RPCs in flight<br/> for a single transfer. This hurts performance testing requests &gt; 1 MB in size.</p> LU-291 echo client to use obd_brw_async Improvement Minor Resolved Fixed Lai Siyao Lai Siyao Fri, 6 May 2011 22:05:16 +0000 Wed, 11 May 2011 19:14:23 +0000 Wed, 11 May 2011 19:14:23 +0000 Lustre 2.0.0 Lustre 2.1.0 Sat, 28 May 2011 00:00:00 +0000 0 0 <p>The echo_client uses obd_brw() only for 'disk' mode, e.g. when echo client is sitting on top of obdfilter, so there is no network requests at all.<br/> In network mode the cl_echo_object_brw() is used and it is asynchronous. Therefore is must have multiple RPCs in flight. Maybe there is another reason for bad performance?</p> <p>I agree with tappro.</p> <p>clio has implemented this functionality, nothing needs to be done for master.</p> Bugzilla ID 18225.0 Development Epic Rank 1|hzw3lj: Rank (Obsolete) 10670