Re: 回复:Re: 回复:Re: Pros and Cons of LTTng

From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
To: 杨海 <hai.yang@magic-shield.com>
Cc: lttng-dev <lttng-dev@lists.lttng.org>
Subject: Re: 回复:Re:  回复:Re:  Pros and Cons of LTTng
Date: Thu, 25 Jul 2019 11:48:32 -0400 (EDT)	[thread overview]
Message-ID: <438504875.11742.1564069712337.JavaMail.zimbra__28558.2121390448$1564069732$gmane$org@efficios.com> (raw)
In-Reply-To: <tencent_264479D416B7725164217DB5@qq.com>

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----- On Jul 25, 2019, at 4:21 PM, 杨海 <hai.yang@magic-shield.com> wrote: 

> Hi

> Thanks for quick response.
> LTTng is really impressive on performance，especially under heavy workload. When
> using it on critical machines，stability is also essential.
> I wonder how LTTng is commercialized and any products or OS distributions
> already enabled it.
> 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?

Hi, 

EfficiOS has had commercial customers using LTTng in production for many years now. 
LTTng per-se is distributed as packages in all major Linux distributions. EfficiOS also provides 
more up-to-date packages for some distributions through [ http://packages.efficios.com/ | http://packages.efficios.com/ ] 

The way we commercialize LTTng is through funding for design and implementation of 
customer's feature requests. We also provide commercial support tailored to specific 
customer's environments, which includes SLA and continuous integration testing of specific 
environments. 

If those are services you are interested in, please feel free to contact us in private so we 
can further discuss your needs. 

Best regards, 

Mathieu 

> regards
> Hai

> --------------原始邮件--------------
> 发件人："Jonathan Rajotte-Julien "<jonathan.rajotte-julien@efficios.com>;
> 发送时间：2019年7月23日(星期二) 上午6:20
> 收件人："杨海" <hai.yang@magic-shield.com>;
> 抄送："lttng-dev "<lttng-dev@lists.lttng.org>;
> 主题：Re: 回复:Re: [lttng-dev] Pros and Cons of LTTng
> -----------------------------------
> Hi,

>> As to LD_PRELOAD, it is also used for privilege escalation. Will it be regarded
> > as vulnerability and forbidden on some Linux systems?

> It could yes.
> In that case you will be limited to the syscalls interface for the libc
> observability unless you instrument it and distribute it.

> Cheers.

> _______________________________________________
> lttng-dev mailing list
> lttng-dev@lists.lttng.org
> https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev

-- 
Mathieu Desnoyers 
EfficiOS Inc. 
http://www.efficios.com 

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