tag:blogger.com,1999:blog-9238405.post5546249766825461847..comments2024-03-18T02:04:50.380-07:00Comments on Agile Testing: Getting detailed I/O stats with MuninGrig Gheorghiuhttp://www.blogger.com/profile/17863511617654196370noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-9238405.post-63199354701749738642011-01-30T04:45:55.480-08:002011-01-30T04:45:55.480-08:00Sorry greg, I just saw your comment about getting ...Sorry greg, I just saw your comment about getting colplot to work as I wasn't notified there was a reply to this thread. You can always email me at mark.seger@hp.com or better yet send something to the collectl-utils mailing list of sourceforge OR post something in the forum there.<br />-markMark Segerhttps://www.blogger.com/profile/05813976850043130168noreply@blogger.comtag:blogger.com,1999:blog-9238405.post-15612074497520376572010-09-29T08:31:53.535-07:002010-09-29T08:31:53.535-07:00Mark -- speaking of rendering collectl plot files ...Mark -- speaking of rendering collectl plot files with colplot, I haven't had a lot of success doing that from the cmdline :-( What's a good email to send you an example?Grig Gheorghiuhttps://www.blogger.com/profile/17863511617654196370noreply@blogger.comtag:blogger.com,1999:blog-9238405.post-30907321732622650272010-09-29T06:35:47.183-07:002010-09-29T06:35:47.183-07:00not a problem getting sub-second stats with collec...not a problem getting sub-second stats with collectl:<br /><br />collectl -i.250 will give you 1/4 second stats. I've played with intervals in the 0.01 range. Just depends on which stats you're collecting and how heavily you want to beat up your system. Just doing disk stats shouldn't be a problem. And being able to graph them with colplot is an added bonusMark Segerhttps://www.blogger.com/profile/05813976850043130168noreply@blogger.comtag:blogger.com,1999:blog-9238405.post-4939589099457462292010-09-27T14:41:54.721-07:002010-09-27T14:41:54.721-07:00postwait -- thanks! I gave reconnoiter a cursory t...postwait -- thanks! I gave reconnoiter a cursory try a couple of weeks ago but I was discouraged at the lack of tutorial-like documentation. I'll try again at some point though ;-)Grig Gheorghiuhttps://www.blogger.com/profile/17863511617654196370noreply@blogger.comtag:blogger.com,1999:blog-9238405.post-52771115657964737462010-09-27T14:35:30.330-07:002010-09-27T14:35:30.330-07:00With stats like those, "fine-grained" sh...With stats like those, "fine-grained" should be 1 second or less. You can see a lot of interesting information about how operations collate.<br /><br />I'd suggest looking at that stuff at 250ms intervals - neat stuff can be witnessed on a busy server, often resulting in obvious tuning to be had.<br /><br />You can do that with <a href="http://labs.omniti.com/labs/reconnoiter/" rel="nofollow">Reconnoiter</a>.Anonymousnoreply@blogger.com