<div dir="ltr"><div dir="ltr">Behavior of the schedulers appears to have the same issue with 2093 patch. <div><br></div><div>But I did notice something new in the msacc output. There is a very brief period, at approx the same time as the normal schedulers usage spikes, where all the dirty cpu schedulers have a significant sleep time. I've included timestamped excerpts below, starting with the increase in dirty cpu sleep, and ending with a "steady state" utilization. </div><div><br></div><div> Thread aux check_io emulator gc other port sleep<br></div><div><br></div><div><div>{{2019,1,15},{21,57,34}}</div><div>dirty_cpu_( 1) 0.00% 0.00% 26.80% 0.00% 22.75% 0.00% 50.45%</div><div> scheduler( 1) 0.17% 0.00% 98.22% 0.50% 0.18% 0.77% 0.16%</div><div><br></div><div>{{2019,1,15},{21,57,36}}</div><div>dirty_cpu_( 1) 0.00% 0.00% 76.92% 0.00% 17.73% 0.00% 5.35%</div><div> scheduler( 1) 0.61% 0.00% 94.20% 1.23% 0.61% 3.35% 0.00%</div><div><br></div><div>{{2019,1,15},{21,57,38}}</div><div>dirty_cpu_( 1) 0.00% 0.00% 87.16% 0.00% 6.52% 0.00% 6.31%</div><div> scheduler( 1) 0.94% 0.14% 93.72% 1.51% 0.63% 2.84% 0.22%</div><div><br></div><div>{{2019,1,15},{21,57,39}}</div><div>dirty_cpu_( 1) 0.00% 0.00% 87.92% 0.00% 6.85% 0.00% 5.23%</div><div> scheduler( 1) 0.98% 0.14% 90.88% 1.32% 3.71% 2.71% 0.26%</div><div><br></div><div>{{2019,1,15},{21,57,40}}</div><div>dirty_cpu_( 1) 0.00% 0.00% 67.47% 0.00% 19.51% 0.00% 13.02%</div><div> scheduler( 1) 1.09% 0.17% 81.95% 1.07% 12.01% 3.08% 0.64%</div><div><br></div><div>{{2019,1,15},{21,57,41}}</div><div>dirty_cpu_( 1) 0.00% 0.00% 64.25% 0.00% 18.86% 0.00% 16.88%</div><div> scheduler( 1) 0.99% 0.28% 74.67% 0.98% 19.56% 2.80% 0.71%</div><div><br></div><div>Thank you for the continuing support!</div><div><br></div><div>Jesse</div><div><br></div></div></div></div><br><div class="gmail_quote"><div dir="ltr">On Tue, Jan 15, 2019 at 4:14 PM Jesse Stimpson <<a href="mailto:jstimpson@republicwireless.com">jstimpson@republicwireless.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">My apologies as I've been distracted by other matters recently. I hope to be able to report back within the next few days.<div><br></div><div>Thanks</div></div><br><div class="gmail_quote"><div dir="ltr">On Tue, Jan 15, 2019 at 12:18 PM Frank Muller <<a href="mailto:frank.muller.erl@gmail.com" target="_blank">frank.muller.erl@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div dir="auto">Hello Jesse</div></div><div dir="auto"><br></div><div dir="auto">Did Rickard’s patch (PR-2093) fixed your Dirty scheduler issue? </div><div dir="auto"><br></div><div dir="auto">Best</div><div dir="auto">/Frank</div><div dir="auto"><br></div><div><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Please try the fix in PR-2093 <<a href="https://github.com/erlang/otp/pull/2093" target="_blank">https://github.com/erlang/otp/pull/2093</a>><br><br>Regards,<br>Rickadr<br>--<br>Rickard Green, Erlang/OTP, Ericsson AB</div>
_______________________________________________<br>
erlang-questions mailing list<br>
<a href="mailto:erlang-questions@erlang.org" target="_blank">erlang-questions@erlang.org</a><br>
<a href="http://erlang.org/mailman/listinfo/erlang-questions" rel="noreferrer" target="_blank">http://erlang.org/mailman/listinfo/erlang-questions</a><br>
</blockquote></div></div>
</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail-m_-5880900733085952526gmail_signature"><div dir="ltr"><div><div dir="ltr"><span><div dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><table style="font-size:12.8px;border:none;border-collapse:collapse"><tbody><tr style="height:0px"><td style="border-width:0px 1px 0px 0px;border-style:solid;border-color:rgb(0,0,0) rgb(204,204,204) rgb(0,0,0) rgb(0,0,0);vertical-align:top;padding:0px"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><a href="http://www.republicwireless.com/" style="color:rgb(17,85,204);text-decoration:none" target="_blank"><span style="font-size:14.6667px;font-family:Arial;background-color:transparent;text-decoration:underline;vertical-align:baseline;white-space:pre-wrap"><img src="https://lh6.googleusercontent.com/OtQkJgG7cQsvQNGkkWBvl6NRdkaV7AlHeBvQeodb-MDWGY8uq3S6KESFRH6U1dN0-jIXYqrApf_ed4sYYvlmgenTmlizLyUGM9XFjzcS97_3AMyFf-78bzNS2yxkdABXzR3VhwWZul8N0H341w" width="105" height="31" style="border: none;"></span></a></p></td><td style="border-width:0px 0px 0px 1px;border-style:solid;border-color:rgb(0,0,0) rgb(0,0,0) rgb(0,0,0) rgb(204,204,204);vertical-align:top;padding:0px"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt;margin-left:9.75pt"><span style="font-size:13.3333px;font-family:Arial;color:rgb(68,68,68);background-color:transparent;font-weight:700;vertical-align:baseline;white-space:pre-wrap">Jesse Stimpson</span></p><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt;margin-left:9.75pt"><span style="font-size:13.3333px;font-family:Arial;color:rgb(153,153,153);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Site Reliability Engineering</span></p><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt;margin-left:9.75pt"><span style="font-size:13.3333px;font-family:Arial;color:rgb(153,153,153);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">m: </span><span style="font-size:13.3333px;font-family:Arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap"><font color="#1155cc"><a href="tel:(919)%20995-0424" value="+19192971077" style="color:rgb(17,85,204)" target="_blank">9199950424</a></font></span><span style="font-size:13.3333px;font-family:Arial;color:rgb(17,85,204);background-color:transparent;vertical-align:baseline;white-space:pre-wrap"><br></span><span style="color:rgb(17,85,204);text-decoration:underline;font-size:13.3333px;font-family:Arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap"><a href="https://republicwireless.com/" style="color:rgb(17,85,204);text-decoration:none" target="_blank">RepublicWireless.com</a></span></p></td></tr></tbody></table></div></span><div><div dir="ltr"></div></div></div></div></div></div>
</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><span><div dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><table style="font-size:12.8px;border:none;border-collapse:collapse"><tbody><tr style="height:0px"><td style="border-width:0px 1px 0px 0px;border-style:solid;border-color:rgb(0,0,0) rgb(204,204,204) rgb(0,0,0) rgb(0,0,0);vertical-align:top;padding:0px"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><a href="http://www.republicwireless.com/" style="color:rgb(17,85,204);text-decoration:none" target="_blank"><span style="font-size:14.6667px;font-family:Arial;background-color:transparent;text-decoration:underline;vertical-align:baseline;white-space:pre-wrap"><img src="https://lh6.googleusercontent.com/OtQkJgG7cQsvQNGkkWBvl6NRdkaV7AlHeBvQeodb-MDWGY8uq3S6KESFRH6U1dN0-jIXYqrApf_ed4sYYvlmgenTmlizLyUGM9XFjzcS97_3AMyFf-78bzNS2yxkdABXzR3VhwWZul8N0H341w" width="105" height="31" style="border: none;"></span></a></p></td><td style="border-width:0px 0px 0px 1px;border-style:solid;border-color:rgb(0,0,0) rgb(0,0,0) rgb(0,0,0) rgb(204,204,204);vertical-align:top;padding:0px"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt;margin-left:9.75pt"><span style="font-size:13.3333px;font-family:Arial;color:rgb(68,68,68);background-color:transparent;font-weight:700;vertical-align:baseline;white-space:pre-wrap">Jesse Stimpson</span></p><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt;margin-left:9.75pt"><span style="font-size:13.3333px;font-family:Arial;color:rgb(153,153,153);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Site Reliability Engineering</span></p><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt;margin-left:9.75pt"><span style="font-size:13.3333px;font-family:Arial;color:rgb(153,153,153);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">m: </span><span style="font-size:13.3333px;font-family:Arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap"><font color="#1155cc"><a href="tel:(919)%20995-0424" value="+19192971077" style="color:rgb(17,85,204)" target="_blank">9199950424</a></font></span><span style="font-size:13.3333px;font-family:Arial;color:rgb(17,85,204);background-color:transparent;vertical-align:baseline;white-space:pre-wrap"><br></span><span style="color:rgb(17,85,204);text-decoration:underline;font-size:13.3333px;font-family:Arial;background-color:transparent;vertical-align:baseline;white-space:pre-wrap"><a href="https://republicwireless.com/" style="color:rgb(17,85,204);text-decoration:none" target="_blank">RepublicWireless.com</a></span></p></td></tr></tbody></table></div></span><div><div dir="ltr"></div></div></div></div></div></div>