Hi Yiteng, > 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.
LTTng is open-source and free and as far as I can tell will be for the foreseeable future. The main contributor behind the lttng ecosytem is EfficiOS. We offer commercial support and feature developments for lttng and similar tools. I encourage you to take a look at our website [1] and contact us [2] if you need commercial support. LTTng mostly exists today due to EfficiOS and its commercial partners. EfficiOS employs all major contributors of the lttng ecosystem. [1] https://www.efficios.com/ [2] https://www.efficios.com/contact/ LTTng is already available for multiple distributions [3][4]. [3] https://lttng.org/download/ [4] Yocto: https://git.yoctoproject.org/cgit.cgi/poky/plain/meta/recipes-kernel/lttng > 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? We do perform extensive testing for our userspace [5][6] and kernel tracer[7][8]. We aim for stability. As you know bugs are always a possibility. The kernel is a forever moving target and distro kernel sometime perform sketchy rebase. We consider lttng-modules to be very stable and we strive to make sure it is the case. [5] https://ci.lttng.org/view/LTTng-ust/ [6] https://ci.lttng.org/view/LTTng-tools/ [7] https://ci.lttng.org/view/LTTng-modules/ [8] https://ci.lttng.org/view/System%20Tests/ Cheers -- Jonathan Rajotte-Julien EfficiOS _______________________________________________ lttng-dev mailing list lttng-dev@lists.lttng.org https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
