Comments on: How to estimate query completion time in MySQL http://www.mysqlperformanceblog.com/2008/04/22/how-to-estimate-query-completion-time-in-mysql/ Percona's MySQL & InnoDB performance and scalability blog Sat, 11 Feb 2012 16:45:54 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Baron Schwartz http://www.mysqlperformanceblog.com/2008/04/22/how-to-estimate-query-completion-time-in-mysql/comment-page-1/#comment-771269 Baron Schwartz Thu, 12 Aug 2010 19:13:25 +0000 http://www.mysqlperformanceblog.com/2008/04/22/how-to-estimate-query-completion-time-in-mysql/#comment-771269 No work on that yet. But you could discuss on our mailing list or file a feature request for percona-server on Launchpad. (I think there might already be such a feature request.) We actively look for people to sponsor features such as these, so if you are interested, contact our sales team to discuss. No work on that yet. But you could discuss on our mailing list or file a feature request for percona-server on Launchpad. (I think there might already be such a feature request.) We actively look for people to sponsor features such as these, so if you are interested, contact our sales team to discuss.

]]> By: Lucek http://www.mysqlperformanceblog.com/2008/04/22/how-to-estimate-query-completion-time-in-mysql/comment-page-1/#comment-771249 Lucek Thu, 12 Aug 2010 17:07:59 +0000 http://www.mysqlperformanceblog.com/2008/04/22/how-to-estimate-query-completion-time-in-mysql/#comment-771249 Baron, Any news on implementation of per thread stats? Baron,

Any news on implementation of per thread stats?

]]> By: Baron Schwartz http://www.mysqlperformanceblog.com/2008/04/22/how-to-estimate-query-completion-time-in-mysql/comment-page-1/#comment-767120 Baron Schwartz Wed, 16 Jun 2010 01:00:41 +0000 http://www.mysqlperformanceblog.com/2008/04/22/how-to-estimate-query-completion-time-in-mysql/#comment-767120 See http://www.mysqlperformanceblog.com/2010/06/15/what-does-handler_read_rnd-mean/ See http://www.mysqlperformanceblog.com/2010/06/15/what-does-handler_read_rnd-mean/

]]> By: MLBR http://www.mysqlperformanceblog.com/2008/04/22/how-to-estimate-query-completion-time-in-mysql/comment-page-1/#comment-767094 MLBR Tue, 15 Jun 2010 20:13:25 +0000 http://www.mysqlperformanceblog.com/2008/04/22/how-to-estimate-query-completion-time-in-mysql/#comment-767094 Great tip! Any insight into what the "rnd_next" in "Handler_read_rnd_next" *translates* to? Most status variables are clear to me (e.g. prev/next/key), but this one escapes me. Great tip!

Any insight into what the “rnd_next” in “Handler_read_rnd_next” *translates* to?

Most status variables are clear to me (e.g. prev/next/key), but this one escapes me.

]]> By: Jason http://www.mysqlperformanceblog.com/2008/04/22/how-to-estimate-query-completion-time-in-mysql/comment-page-1/#comment-737545 Jason Wed, 17 Mar 2010 18:15:22 +0000 http://www.mysqlperformanceblog.com/2008/04/22/how-to-estimate-query-completion-time-in-mysql/#comment-737545 Very, very helpful, thanks for this great tip! -Jason Very, very helpful, thanks for this great tip! -Jason

]]> By: Kailash Kumar P http://www.mysqlperformanceblog.com/2008/04/22/how-to-estimate-query-completion-time-in-mysql/comment-page-1/#comment-340009 Kailash Kumar P Mon, 04 Aug 2008 13:59:14 +0000 http://www.mysqlperformanceblog.com/2008/04/22/how-to-estimate-query-completion-time-in-mysql/#comment-340009 Great work Baron. Great work Baron.

]]> By: Mike http://www.mysqlperformanceblog.com/2008/04/22/how-to-estimate-query-completion-time-in-mysql/comment-page-1/#comment-308813 Mike Wed, 04 Jun 2008 21:13:24 +0000 http://www.mysqlperformanceblog.com/2008/04/22/how-to-estimate-query-completion-time-in-mysql/#comment-308813 Nice work man Nice work man

]]> By: Baron Schwartz http://www.mysqlperformanceblog.com/2008/04/22/how-to-estimate-query-completion-time-in-mysql/comment-page-1/#comment-287138 Baron Schwartz Thu, 24 Apr 2008 11:57:34 +0000 http://www.mysqlperformanceblog.com/2008/04/22/how-to-estimate-query-completion-time-in-mysql/#comment-287138 I had thought about this patch too. The KILL command is the only place I know where there might be sample code for identifying another thread. I haven't looked at the code yet, but in theory it might not be that hard to do this. I had thought about this patch too. The KILL command is the only place I know where there might be sample code for identifying another thread. I haven’t looked at the code yet, but in theory it might not be that hard to do this.

]]> By: peter http://www.mysqlperformanceblog.com/2008/04/22/how-to-estimate-query-completion-time-in-mysql/comment-page-1/#comment-286947 peter Thu, 24 Apr 2008 03:38:27 +0000 http://www.mysqlperformanceblog.com/2008/04/22/how-to-estimate-query-completion-time-in-mysql/#comment-286947 Baron, Too bad this only works on unloaded server. It would be great to get performance counters for different thread in this case it would be much easier to see the progress. May be we should see if it is possible to implement such patch. Baron,

Too bad this only works on unloaded server. It would be great to get performance counters for different thread in this case it would be much easier to see the progress. May be we should see if it is possible to implement such patch.

]]> By: David Holoboff http://www.mysqlperformanceblog.com/2008/04/22/how-to-estimate-query-completion-time-in-mysql/comment-page-1/#comment-286540 David Holoboff Wed, 23 Apr 2008 14:25:45 +0000 http://www.mysqlperformanceblog.com/2008/04/22/how-to-estimate-query-completion-time-in-mysql/#comment-286540 Baron, Thank you for sharing this tool - it is very useful... :) I tested this with inserts, updates and deletes and it works very well. I am going to use this request on our job-related servers to estimate finish time. My estimated time after doing several tests on a 100 million row table was within 5 seconds of the actual time for selects, inserts, updates, and deletes (deletes, being the fastest, had a margin of error of no more than one second). Thanks, David Holoboff Baron,

Thank you for sharing this tool – it is very useful… :)

I tested this with inserts, updates and deletes and it works very well. I am going to use this request on our job-related servers to estimate finish time. My estimated time after doing several tests on a 100 million row table was within 5 seconds of the actual time for selects, inserts, updates, and deletes (deletes, being the fastest, had a margin of error of no more than one second).

Thanks,
David Holoboff

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