<html><head><base href="x-msg://59/"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">uname -a will generally show if it's running a xen modified kernel.<div><br></div><div><br><div><div>On May 18, 2011, at 2:05 PM, <a href="mailto:dennisjperkins@comcast.net">dennisjperkins@comcast.net</a> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><span class="Apple-style-span" style="border-collapse: separate; font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div><div style="font-family: Arial; font-size: 12pt; color: rgb(0, 0, 0); ">I don't know if it is Xen. Is there a quick way to find out? I'm guessing there is probably a kernel module.<br><br>----- Original Message -----<br>From: "chris fedde" <<a href="mailto:chris@fedde.us">chris@fedde.us</a>><br>To: "CLUE's mailing list" <<a href="mailto:clue@cluedenver.org">clue@cluedenver.org</a>><br>Sent: Wednesday, May 18, 2011 12:22:02 PM<br>Subject: Re: [clue] website is faster<br><br>This is a Xen VM? Top shows high IO wait when processing the first<br>GET in the webpage. How is disk provisioned for this system? vmstat<br>does show high swap and block IO when performing the main page GET as<br>well as high IO wait consistent with the results from top.<br><br>On Wed, May 18, 2011 at 9:32 AM, Dan Kulinski <<a href="mailto:daniel@kulinski.net">daniel@kulinski.net</a>> wrote:<br>> vmstat would show swap hits also, if swap is enabled on the server.<br>><br>> Dan Kulinski<br>><br>> On Wed, May 18, 2011 at 9:26 AM, Brandon Allhands <<a href="mailto:brandon@toolking.com">brandon@toolking.com</a>><br>> wrote:<br>>><br>>> You guys might want to take a look at an opcode cache as well, such as<br>>> php-apc. It's super easy to configure and makes a huge difference on CMS<br>>> type installs like Drupal, due to the constant class loading they do.<br>>> Do you guys have full shell access? Sounds like you do, since you are<br>>> talking about top. free -m will show how much actual memory is in use, vs<br>>> buffers. If a simple page load is causing swap to be hit, that is definitely<br>>> the source of your slowdown. How much RAM does this server have?<br>>> I have been on this list for a while, lurking. You guys have just hit on<br>>> my forte, which is web application hosting, so I am chiming in :)<br>>> If you guys trust access to a relatively new person on this list, I can<br>>> send you my public ssh key and poke around. If not, I am more than willing<br>>> to offer advice.<br>>> Brandon<br>><br>> _______________________________________________<br>> clue mailing list<br>><span class="Apple-converted-space"> </span><a href="mailto:clue@cluedenver.org">clue@cluedenver.org</a><br>><span class="Apple-converted-space"> </span><a href="http://cluedenver.org/mailman/listinfo/clue">http://cluedenver.org/mailman/listinfo/clue</a><br>><br>_______________________________________________<br>clue mailing list<br><a href="mailto:clue@cluedenver.org">clue@cluedenver.org</a><br><a href="http://cluedenver.org/mailman/listinfo/clue">http://cluedenver.org/mailman/listinfo/clue</a><br></div>_______________________________________________<br>clue mailing list<br><a href="mailto:clue@cluedenver.org">clue@cluedenver.org</a><br><a href="http://cluedenver.org/mailman/listinfo/clue">http://cluedenver.org/mailman/listinfo/clue</a></div></span></blockquote></div><br><div>
<span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div>Brandon Allhands</div><div>IT Manager</div><div><a href="mailto:brandon@toolking.com">brandon@toolking.com</a></div><div>1.800.696.TOOL</div><div><a href="http://ToolKing.com">ToolKing.com</a></div><div>11111 West Sixth Ave Unit D</div><div>Lakewood, CO 80215</div><div>303.500.0427 - Direct</div><div><br></div><div>View our Tool Deals of the Day @ <a href="http://www.Tooliday.com">www.Tooliday.com</a></div><div><br></div><div>Check out our tool blog, <a href="http://www.Toologics.com">www.Toologics.com</a></div><div><br></div><div>CONFIDENTIALITY NOTICE - This e-mail transmission, and any document, files or previous e-mail messages attached to it, may contain information that is confidential or legally privileged. If you are not the intended recipient, or a person responsible for delivering it to the intended recipient, you are hereby notified that you must not read or play this transmission and that any disclosure, copying, printing, distribution or use of any the information contained in or attached to this transmission is STRICTLY PROHIBITED. If you have received this transmission in error, please immediately notify the sender by telephone or return e-mail and delete the original transmission and its attachments without reading or saving in any manner. Thank you.</div></div></div></span></div></span></span>
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