<p dir="ltr">Good point. I am using sync on that nfs mount. I'll poke it to async and retest.</p>
<div class="gmail_quote">On Sep 30, 2015 2:08 PM, "Scott Bragg" <<a href="mailto:walkingbear@gmail.com">walkingbear@gmail.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Sounds like significant drop in performance for large numbers of small file writes. Are you using async writes? If I remember my nfs tuning params, sync writes send a confirm for each file written and if you're writing a lot of tiny files, it slows things significantly. Once I get a break from the wonderful fun of PowerDNS (/sarc) I'll dig into some of the nfs tuning and see what I can find. Beyond that, normal disk and filesystem tuning for the types / sizes of file writes as well as possibly moving the dot files and temp dirs off the nfs and onto the local workstation (/tmp/usr/.xyz instead of /home/user/.xyz for instance) might help at least troubleshoot. <div><br></div><div>Scott</div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Sep 30, 2015 at 1:24 PM, Jim Kinney <span dir="ltr"><<a href="mailto:jim.kinney@gmail.com" target="_blank">jim.kinney@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div>everything BUT firefox and Matlab are OK. Both are heavy writers to dotfiles :-(</div><div><br></div><div>nfstat values are OK. As expected it varies throughout the day based on building usage.</div><div><div><div><br></div><div>On Wed, 2015-09-30 at 13:19 -0400, Scott Bragg wrote:</div><blockquote type="cite"><div dir="ltr">What kind of response rates do you get locally to that nfs mount?</div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Sep 30, 2015 at 1:12 PM, Jim Kinney <span dir="ltr"><<a href="mailto:jim.kinney@gmail.com" target="_blank">jim.kinney@gmail.com</a>></span> wrote:<br><blockquote type="cite"><div><div>I'm 99% certain that the 2-5 minute page load is due to the caching process and the mostly crappy bandwidth between my users and where their /home is sourced. So I disabled caching as a test. No change.</div><div><br></div><div>I've checked DNS and it returns fast. Any other ideas to speed things up?</div><span><font color="#888888"><div><span><pre>--
James P. Kinney III
Every time you stop a school, you will have to build a jail. What you
gain at one end you lose at the other. It's like feeding a dog on his
own tail. It won't fatten the dog.
- Speech 11/23/1900 Mark Twain
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Every time you stop a school, you will have to build a jail. What you
gain at one end you lose at the other. It's like feeding a dog on his
own tail. It won't fatten the dog.
- Speech 11/23/1900 Mark Twain
<a href="http://heretothereideas.blogspot.com/" target="_blank">http://heretothereideas.blogspot.com/</a>
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