<html><body><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000"><div><span id="zwchr" data-marker="__DIVIDER__">----- On May 10, 2018, at 2:51 PM, Shehab Elsayed <shehabyomn@gmail.com> wrote:<br></span></div><div data-marker="__QUOTED_TEXT__"><blockquote style="border-left:2px solid #1010FF;margin-left:5px;padding-left:5px;color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"><div dir="ltr"><div><div><div><div>Hi All,<br><br></div>I am running into a problem with creating a custom channel. It seems that once the total size of sub-buffers hits 512M no events are being generated.<br><br></div>I tried creating a channel with 2 sub-buffers, 256M each, but when I check the generated traces with <span class="" style="" id=":4ng.1">babeltrace</span>, it complains that there are no valid traces. The same problem happens if I use a single 512M sub-buffer.<br><br></div>However, If I use only 1 sub-buffer of size 256M, a trace is generated but some events are discarded (which I am really trying to avoid).<br><br></div><div>I have enabled <span class="" style="" id=":4ng.2">LTTNG</span>_<span class="" style="" id=":4ng.3">UST</span>_DEBUG and attached the output for both 2,256M and 1,256M cases.<br><br></div><div>Any suggestions on how to solve this problem?</div></div></blockquote><div>Please provide detailed commands used to setup tracing for each case.<br></div><div><br data-mce-bogus="1"></div><div>Which lttng components versions are you using ?<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>Please provide the verbose logs of lttng-sessiond and lttng-consumerd as well.<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>You should also double-check that you have enough space in /dev/shm.<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>Thanks,<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>Mathieu<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><blockquote style="border-left:2px solid #1010FF;margin-left:5px;padding-left:5px;color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"><div dir="ltr"><div><br><br></div><div>Thanks,<br></div><div><span class="" style="" id=":4ng.4">Shehab</span><br></div><div><br><br><br></div><br><div><br><br></div></div>
<br>_______________________________________________<br>lttng-dev mailing list<br>lttng-dev@lists.lttng.org<br>https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev<br></blockquote></div><div><br></div><div data-marker="__SIG_POST__">-- <br></div><div>Mathieu Desnoyers<br>EfficiOS Inc.<br>http://www.efficios.com</div></div></body></html>