See the llnode repository for the latest. NOTE: It's 1, and I'd expect this to be simplified in future versions. To help out, I'll share the commands and screenshots I used for taking a fresh Ubuntu Xenial server with Node v4.4.7 and running some memory object analysis. Llnode is not yet well known or documented. Thanks to Fedor Indutny for creating llnode, Howard Hellyer for contributing findjsobjects support, and thanks to Dave Pacheco for first developing this kind of analysis. Other approaches include analyzing heap snapshots with heapdump, or taking a core dump and analyzing it with mdb findjsobjects on an old Solaris image.įortunately, findjsobjects has just been made available for Linux in llnode, an lldb plugin, which I'll write about here. I start with a page fault flame graph using Linux perf, which can be generated on the live running process with low overhead. The memory of your Node.js process is growing endlessly, what do you do? Systems Performance: Enterprise and the Cloud, 2nd Edition How To Add eBPF Observability To Your ProductīPF binaries: BTF, CO-RE, and the future of BPF perf tools USENIX LISA2021 Computing Performance: On the Horizon USENIX SREcon APAC 2022: Computing Performance: What's on the Horizon EBPF Observability Tools Are Not Security Tools
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