Comments on: MySQL Memory Usage Profile Script 2 http://www.pythian.com/news/437/mysql-memory-usage-profile-script-2/ News and views from Pythian DBAs Thu, 18 Mar 2010 00:27:25 +0000 http://wordpress.org/?v=2.8.4 hourly 1 By: Sean http://www.pythian.com/news/437/mysql-memory-usage-profile-script-2/#comment-55141 Sean Fri, 01 Jun 2007 23:29:55 +0000 http://www.pythian.com/blogs/437/mysql-memory-usage-profile-script-2#comment-55141 This is really handy and would definitely use it if it were GPL'd. Please consider it! Cheers. This is really handy and would definitely use it if it were GPL’d. Please consider it! Cheers.

]]> By: Tim Procter http://www.pythian.com/news/437/mysql-memory-usage-profile-script-2/#comment-53922 Tim Procter Wed, 30 May 2007 18:59:35 +0000 http://www.pythian.com/blogs/437/mysql-memory-usage-profile-script-2#comment-53922 It was recently pointed out that the link was broken again, and I apologize for that. The link is working as of now, and I think we've corrected the problem. Please let me know via comment or email if you notice any other issues. It was recently pointed out that the link was broken again, and I apologize for that. The link is working as of now, and I think we’ve corrected the problem. Please let me know via comment or email if you notice any other issues.

]]> By: Tim Procter http://www.pythian.com/news/437/mysql-memory-usage-profile-script-2/#comment-53152 Tim Procter Mon, 28 May 2007 14:19:46 +0000 http://www.pythian.com/blogs/437/mysql-memory-usage-profile-script-2#comment-53152 Thanks for pointing out that it went missing again. It seems to be a recurring problem. I've put the file back up there, and I'll be investigating the case of the missing files in more depth. I also emailed Steve and asked if he would post his changes. Thanks for pointing out that it went missing again. It seems to be a recurring problem.

I’ve put the file back up there, and I’ll be investigating the case of the missing files in more depth. I also emailed Steve and asked if he would post his changes.

]]> By: Jeremy http://www.pythian.com/news/437/mysql-memory-usage-profile-script-2/#comment-53093 Jeremy Mon, 28 May 2007 09:04:07 +0000 http://www.pythian.com/blogs/437/mysql-memory-usage-profile-script-2#comment-53093 No updates on the missing file, or steve's linux version? No updates on the missing file, or steve’s linux version?

]]> By: Tim Procter http://www.pythian.com/news/437/mysql-memory-usage-profile-script-2/#comment-38519 Tim Procter Fri, 20 Apr 2007 15:33:17 +0000 http://www.pythian.com/blogs/437/mysql-memory-usage-profile-script-2#comment-38519 Thanks Jay, I've referred to that site myself. I'm posting a reponse from Steve, with his permission. >>> >>Awesome, thanks. For some reason the copy and paste didn't work, but the download is fine, so thats great. I've got a small patch to support FreeBSD as well as Linux if you want it. Mail me. Very useful script, thanks for sharing. >>> Many of our clients are linux-based, so I'm curious about what failed. I did make some changes to it to make it independent from our internal software, so maybe I broke that. > Steve Wills wrote: >> FreeBSD doesn't have a /proc/meminfo, you do "sysctl hw.physmem" instead. I just added a call to "uname -s" to get the OS then if/elsif/else it to DTRT, etc. Also, I added a <code>"<html><body><pre>" and "</pre></body></html>"</code> at the end to generate a complete valid HTML file, just as a niceity. >> I am curious about one thing. I'm not sure if the numbers are off or I'm misunderstanding, but I notice on one server I ran this on (a Linux box): >> Per connection memory usage: >> ... >> TOTAL: 0.13 M >> >> Then in the summary: >> Potential Connection Memory: 13 M >> >> Am I misunderstanding or is one of those off? >> (output here: http://www.pythian.com/blogs/steves-mysql-report/ ) (Copied from original location -tp) >> Thanks, >> Steve > The total takes into account the max_connections variable (100), since if all connections are used, they would each consume the per-connection amount. Gotcha, I think I was just thrown since per connection was .13 and the total was 13, but of course that is 100 times... I was just in a hurry reading it.... > -> ::key_buffer usage: 100 % (high-water: 0 %) > Those numbers seem unusual. The high-water mark can sometimes be wrong, but 100 % usage is rare. You may see better performance by increasing the buffer size. Yeah, I was thinking about increasing it before I found your script, but just wasn't sure the system had enough total memory for it. > Is this a dedicated server, or do you have other apps running on it? It's running the whole LAMP stack... Thanks Jay, I’ve referred to that site myself.

I’m posting a reponse from Steve, with his permission.

>>> >>Awesome, thanks. For some reason the copy and paste didn’t work, but the download is fine, so thats great. I’ve got a small patch to support FreeBSD as well as Linux if you want it. Mail me. Very useful script, thanks for sharing.
>>> Many of our clients are linux-based, so I’m curious about what failed. I did make some changes to it to make it independent from our internal software, so maybe I broke that.

> Steve Wills wrote:
>> FreeBSD doesn’t have a /proc/meminfo, you do “sysctl hw.physmem” instead. I just added a call to “uname -s” to get the OS then if/elsif/else it to DTRT, etc. Also, I added a "<html><body><pre>" and "</pre></body></html>"
at the end to generate a complete valid HTML file, just as a niceity.
>> I am curious about one thing. I’m not sure if the numbers are off or I’m misunderstanding, but I notice on one server I ran this on (a Linux box):
>> Per connection memory usage:
>> …
>> TOTAL: 0.13 M
>>
>> Then in the summary:
>> Potential Connection Memory: 13 M
>>
>> Am I misunderstanding or is one of those off?
>> (output here: http://www.pythian.com/blogs/steves-mysql-report/ ) (Copied from original location -tp)
>> Thanks,
>> Steve

> The total takes into account the max_connections variable (100), since if all connections are used, they would each consume the per-connection amount.

Gotcha, I think I was just thrown since per connection was .13 and the total was 13, but of course that is 100 times… I was just in a hurry reading it….

> -> ::key_buffer usage: 100 % (high-water: 0 %)
> Those numbers seem unusual. The high-water mark can sometimes be wrong, but 100 % usage is rare. You may see better performance by increasing the buffer size.

Yeah, I was thinking about increasing it before I found your script, but just wasn’t sure the system had enough total memory for it.

> Is this a dedicated server, or do you have other apps running on it?
It’s running the whole LAMP stack…

]]> By: Jay Pipes http://www.pythian.com/news/437/mysql-memory-usage-profile-script-2/#comment-38360 Jay Pipes Thu, 19 Apr 2007 21:15:14 +0000 http://www.pythian.com/blogs/437/mysql-memory-usage-profile-script-2#comment-38360 Hi! When you figure out the licensing, feel free to consider adding this to MySQL Forge snippets :) http://forge.mysql.com/snippets/ Cheers! jay Hi! When you figure out the licensing, feel free to consider adding this to MySQL Forge snippets :) http://forge.mysql.com/snippets/

Cheers!

jay

]]> By: Steve http://www.pythian.com/news/437/mysql-memory-usage-profile-script-2/#comment-38335 Steve Thu, 19 Apr 2007 18:39:36 +0000 http://www.pythian.com/blogs/437/mysql-memory-usage-profile-script-2#comment-38335 Awesome, thanks. For some reason the copy and paste didn't work, but the download is fine, so thats great. I've got a small patch to support FreeBSD as well as Linux if you want it. Mail me. Very useful script, thanks for sharing. Steve Awesome, thanks. For some reason the copy and paste didn’t work, but the download is fine, so thats great. I’ve got a small patch to support FreeBSD as well as Linux if you want it. Mail me. Very useful script, thanks for sharing.

Steve

]]> By: Tim Procter http://www.pythian.com/news/437/mysql-memory-usage-profile-script-2/#comment-38334 Tim Procter Thu, 19 Apr 2007 18:25:38 +0000 http://www.pythian.com/blogs/437/mysql-memory-usage-profile-script-2#comment-38334 Hi Steve, the script should clean up if you copy-paste it. and I've fixed the download. Thanks for noticing. Hi Steve, the script should clean up if you copy-paste it. and I’ve fixed the download. Thanks for noticing.

]]> By: Steve http://www.pythian.com/news/437/mysql-memory-usage-profile-script-2/#comment-38330 Steve Thu, 19 Apr 2007 18:14:22 +0000 http://www.pythian.com/blogs/437/mysql-memory-usage-profile-script-2#comment-38330 Ouch! That got mangled pretty heavily in the posting, and the download is 404. Mind fixing one of those? Thanks for sharing btw. Steve Ouch! That got mangled pretty heavily in the posting, and the download is 404. Mind fixing one of those?

Thanks for sharing btw.

Steve

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