<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=utf-8"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman",serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
p.MsoListParagraph, li.MsoListParagraph, div.MsoListParagraph
{mso-style-priority:34;
margin-top:0in;
margin-right:0in;
margin-bottom:0in;
margin-left:.5in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman",serif;}
span.EmailStyle17
{mso-style-type:personal-reply;
font-family:"Calibri",sans-serif;
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri",sans-serif;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
/* List Definitions */
@list l0
{mso-list-id:535776042;
mso-list-type:hybrid;
mso-list-template-ids:-1187058382 67698711 67698713 67698715 67698703 67698713 67698715 67698703 67698713 67698715;}
@list l0:level1
{mso-level-number-format:alpha-lower;
mso-level-text:"%1\)";
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l0:level2
{mso-level-number-format:alpha-lower;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l0:level3
{mso-level-number-format:roman-lower;
mso-level-tab-stop:none;
mso-level-number-position:right;
text-indent:-9.0pt;}
@list l0:level4
{mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l0:level5
{mso-level-number-format:alpha-lower;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l0:level6
{mso-level-number-format:roman-lower;
mso-level-tab-stop:none;
mso-level-number-position:right;
text-indent:-9.0pt;}
@list l0:level7
{mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l0:level8
{mso-level-number-format:alpha-lower;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l0:level9
{mso-level-number-format:roman-lower;
mso-level-tab-stop:none;
mso-level-number-position:right;
text-indent:-9.0pt;}
ol
{margin-bottom:0in;}
ul
{margin-bottom:0in;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'>A)What platform are you running FreeSWITCH on? (eg: Debian 8 etc)<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'>b)How are you starting FreeSWITCH? (eg: in the foreground or background with an init script)<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>From:</span></b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> freeswitch-users-bounces@lists.freeswitch.org [mailto:freeswitch-users-bounces@lists.freeswitch.org] <b>On Behalf Of </b>Vladislav Ivanov<br><b>Sent:</b> Monday, December 14, 2015 9:47 AM<br><b>To:</b> freeswitch-users@lists.freeswitch.org<br><b>Subject:</b> [Freeswitch-users] Thread failure with low CPU utilization?<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>Hello,<br><br>I have 1.6.5 Freeswitch and I'm trying to test how much lines/cps it can handle on my test machine:<br><br>CPU: Intel(R) Xeon(R) CPU E5450 @ 3.00GHz x2 (8 cores, 3 GHz)<br>RAM: 32GB<br>SSD: 500 GB<br><br>I'm using call generator to check flood the freeswitch, but when FS gets 1k sessions it sends <br>[CRIT] switch_core_session.c:1781 Thread Failure!<br>and the Star Wars quote... But the CPU load is less than 10%<br><br>Ulimit is as follows: <o:p></o:p></p><div><p class=MsoNormal>core file size (blocks, -c) 0<o:p></o:p></p></div><div><p class=MsoNormal>data seg size (kbytes, -d) unlimited<o:p></o:p></p></div><div><p class=MsoNormal>scheduling priority (-e) 0<o:p></o:p></p></div><div><p class=MsoNormal>file size (blocks, -f) unlimited<o:p></o:p></p></div><div><p class=MsoNormal>pending signals (-i) 128330<o:p></o:p></p></div><div><p class=MsoNormal>max locked memory (kbytes, -l) 64<o:p></o:p></p></div><div><p class=MsoNormal>max memory size (kbytes, -m) unlimited<o:p></o:p></p></div><div><p class=MsoNormal>open files (-n) 32768<o:p></o:p></p></div><div><p class=MsoNormal>pipe size (512 bytes, -p) 8<o:p></o:p></p></div><div><p class=MsoNormal>POSIX message queues (bytes, -q) 819200<o:p></o:p></p></div><div><p class=MsoNormal>real-time priority (-r) 0<o:p></o:p></p></div><div><p class=MsoNormal>stack size (kbytes, -s) 2048<o:p></o:p></p></div><div><p class=MsoNormal>cpu time (seconds, -t) unlimited<o:p></o:p></p></div><div><p class=MsoNormal>max user processes (-u) 32768<o:p></o:p></p></div><div><p class=MsoNormal>virtual memory (kbytes, -v) unlimited<o:p></o:p></p></div><div><p class=MsoNormal>file locks (-x) unlimited<o:p></o:p></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><br>Server is physical, not virtual, but I dont have the same issue with virtual freeswitch.<br><br>Here is the "status" before the session limit:<o:p></o:p></p><div><p class=MsoNormal>freeswitch@internal> status<o:p></o:p></p></div><div><p class=MsoNormal>UP 0 years, 0 days, 0 hours, 0 minutes, 56 seconds, 137 milliseconds, 603 microseconds<o:p></o:p></p></div><div><p class=MsoNormal>FreeSWITCH (Version 1.6.5 git 70b8c17 2015-11-20 20:57:50Z 64bit) is ready<o:p></o:p></p></div><div><p class=MsoNormal>994 session(s) since startup<o:p></o:p></p></div><div><p class=MsoNormal>994 session(s) - peak 994, last 5min 994<o:p></o:p></p></div><div><p class=MsoNormal>40 session(s) per Sec out of max 200, peak 41, last 5min 41<o:p></o:p></p></div><div><p class=MsoNormal>10000 session(s) max<o:p></o:p></p></div><div><p class=MsoNormal>min idle cpu 10.00/96.77<o:p></o:p></p></div><div><p class=MsoNormal>Current Stack Size/Max 2048K/2048K<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>freeswitch@internal> status<o:p></o:p></p></div><div><p class=MsoNormal>UP 0 years, 0 days, 0 hours, 0 minutes, 56 seconds, 370 milliseconds, 877 microseconds<o:p></o:p></p></div><div><p class=MsoNormal>FreeSWITCH (Version 1.6.5 git 70b8c17 2015-11-20 20:57:50Z 64bit) is ready<o:p></o:p></p></div><div><p class=MsoNormal>1003 session(s) since startup<o:p></o:p></p></div><div><p class=MsoNormal>1003 session(s) - peak 1003, last 5min 1003<o:p></o:p></p></div><div><p class=MsoNormal>40 session(s) per Sec out of max 200, peak 41, last 5min 41<o:p></o:p></p></div><div><p class=MsoNormal>993 session(s) max<o:p></o:p></p></div><div><p class=MsoNormal>min idle cpu 10.00/96.77<o:p></o:p></p></div><div><p class=MsoNormal>Current Stack Size/Max 2048K/2048K<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>freeswitch@internal> 2015-12-14 15:37:37.436968 [CRIT] switch_core_session.c:1781 Thread Failure!<o:p></o:p></p></div><div><p class=MsoNormal>2015-12-14 15:37:37.436968 [CRIT] switch_core_session.c:1737 LUKE: I'm hit, but not bad.<o:p></o:p></p></div><div><p class=MsoNormal>2015-12-14 15:37:37.436968 [CRIT] switch_core_session.c:1738 LUKE'S VOICE: Artoo, see what you can do with it. Hang on back there....<o:p></o:p></p></div><div><p class=MsoNormal>Green laserfire moves past the beeping little robot as his head turns. After a few beeps and a twist of his mechanical arm,<o:p></o:p></p></div><div><p class=MsoNormal>Artoo reduces the max sessions to 993 thus, saving the switch from certain doom.<br><br>Any help with that? Really strange error...<o:p></o:p></p></div></div></div></div></body></html>