<html><body><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000"><div><span id="zwchr" data-marker="__DIVIDER__">----- On Jul 25, 2019, at 4:21 PM, 杨海 <hai.yang@magic-shield.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>Hi</div><br><div>Thanks for quick response. </div><div>LTTng is really impressive on performance，especially under heavy workload. When using it on critical machines，stability is also essential. </div><div>I wonder how LTTng is commercialized and any products or OS distributions already enabled it. </div><div>I took a look at lttng-modules bug list，there are a few kernel oops years ago and got resolved. May I say it is very stable or it has not been fully tested? </div></blockquote><div><br></div><div>Hi,<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>EfficiOS has had commercial customers using LTTng in production for many years now.</div><div>LTTng per-se is distributed as packages in all major Linux distributions. EfficiOS also provides<br data-mce-bogus="1"></div><div>more up-to-date packages for some distributions through <a href="http://packages.efficios.com/">http://packages.efficios.com/</a></div><div><br data-mce-bogus="1"></div><div>The way we commercialize LTTng is through funding for design and implementation of</div><div>customer's feature requests. We also provide commercial support tailored to specific</div><div>customer's environments, which includes SLA and continuous integration testing of specific</div><div>environments.<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>If those are services you are interested in, please feel free to contact us in private so we</div><div>can further discuss your needs.<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>Best regards,<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>Mathieu</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;"><br><div>regards</div><div>Hai<br><p><br><br></p><br><br>--------------原始邮件--------------<br>发件人："Jonathan Rajotte-Julien "<jonathan.rajotte-julien@efficios.com>;<br>发送时间：2019年7月23日(星期二) 上午6:20<br>收件人："杨海" <hai.yang@magic-shield.com>;<br>抄送："lttng-dev "<lttng-dev@lists.lttng.org>;<br>主题：Re: 回复:Re: [lttng-dev] Pros and Cons of LTTng<br>-----------------------------------<br></div> <div><div>Hi,<br><br>> As to LD_PRELOAD, it is also used for privilege escalation. Will it be regarded as vulnerability and forbidden on some Linux systems?<br><br>It could yes.<br>In that case you will be limited to the syscalls interface for the libc<br>observability unless you instrument it and distribute it.<br><br>Cheers.<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>