http://wiki.define-technology.com/mediawiki-1.35.0/index.php?action=history&feed=atom&title=10G_NICs_General_Optimization 2026-05-04T18:52:09Z Revision history for this page on the wiki MediaWiki 1.35.0 http://wiki.define-technology.com/mediawiki-1.35.0/index.php?title=10G_NICs_General_Optimization&diff=9091&oldid=prev 2015-07-24T13:40:48Z

<p></p> <table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 13:40, 24 July 2015</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Append the following in `<del class="diffchange diffchange-inline">boot</del>` entry of file /etc/grub.conf: CPUs should be isolated according to your case</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Append the following in `<ins class="diffchange diffchange-inline">kernel</ins>` entry of file /etc/grub.conf: CPUs should be isolated according to your case</div></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>&lt;syntaxhighlight&gt;</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>&lt;syntaxhighlight&gt;</div></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>intel_idle.max_cstate=0 processor.max_cstate=0 idle=poll pcie_aspm=performance mce=ignore_ce ipmi_si.force_kipmi=0 nmi_watchdog=0 noht nosoftlockup isolcpus=3,7</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>intel_idle.max_cstate=0 processor.max_cstate=0 idle=poll pcie_aspm=performance mce=ignore_ce ipmi_si.force_kipmi=0 nmi_watchdog=0 noht nosoftlockup isolcpus=3,7</div></td></tr> </table>

Chenhui http://wiki.define-technology.com/mediawiki-1.35.0/index.php?title=10G_NICs_General_Optimization&diff=9081&oldid=prev 2015-07-24T13:40:04Z

<p>Created page with &quot;Append the following in `boot` entry of file /etc/grub.conf: CPUs should be isolated according to your case &lt;syntaxhighlight&gt; intel_idle.max_cstate=0 processor.max_cstate=0 idle=poll pci...&quot;</p> <p><b>New page</b></p><div>Append the following in `boot` entry of file /etc/grub.conf: CPUs should be isolated according to your case<br /> &lt;syntaxhighlight&gt;<br /> intel_idle.max_cstate=0 processor.max_cstate=0 idle=poll pcie_aspm=performance mce=ignore_ce ipmi_si.force_kipmi=0 nmi_watchdog=0 noht nosoftlockup isolcpus=3,7<br /> &lt;/syntaxhighlight&gt;<br /> reboot the system.<br /> Optimizations to be performed:<br /> &lt;syntaxhighlight&gt;<br /> modprobe acpi-cpufreq <br /> cpupower set -b 0 <br /> cpupower frequency-set --governor performance <br /> tuned-adm profile latency-performance <br /> <br /> service irqbalance stop<br /> service cpuspeed stop<br /> chkconfig irqbalance off<br /> chkconfig cpuspeed off<br /> <br /> ifconfig $eth mtu 9000 txqueuelen 1000 up #changed the eth id based on your case<br /> <br /> &lt;/syntaxhighlight&gt;<br /> <br /> append the following in file: /etc/sysctl.conf<br /> &lt;syntaxhighlight&gt;<br /> # -- tuning -- #<br /> # Increase system file descriptor limit<br /> fs.file-max = 65535<br /> <br /> # Increase system IP port range to allow for more concurrent connections<br /> net.ipv4.ip_local_port_range = 1024 65000<br /> <br /> # -- 10gbe tuning from Intel ixgb driver README -- #<br /> <br /> # turn off selective ACK and timestamps<br /> net.ipv4.tcp_sack = 0<br /> net.ipv4.tcp_timestamps = 0<br /> <br /> # memory allocation min/pressure/max.<br /> # read buffer, write buffer, and buffer space<br /> net.ipv4.tcp_rmem = 10000000 10000000 10000000<br /> net.ipv4.tcp_wmem = 10000000 10000000 10000000<br /> net.ipv4.tcp_mem = 10000000 10000000 10000000<br /> <br /> net.core.rmem_max = 524287<br /> net.core.wmem_max = 524287<br /> net.core.rmem_default = 524287<br /> net.core.wmem_default = 524287<br /> net.core.optmem_max = 524287<br /> net.core.netdev_max_backlog = 300000<br /> &lt;/syntaxhighlight&gt;</div>

Chenhui