danobi

6 ms·

1.
by danobi 1y ago
https://github.com/thinking-machines-lab/tinker-cookbook
2.
by danobi 2y ago
bpftrace has support for outputting pcap files now.
3.
by danobi 3y ago
SEEKING VOLUNTEERS: bpftrace As non-profit as it get! Intersection of operating systems, compilers, and observability. C/C++/LLVM. https://github.com/bpftrace/bpftrace "good first issue" or "ea
4.
Pull request review: still files(dxuuu.xyz)
2 points by danobi 3y ago|0 comments
5.
by danobi 3y ago
What kind of events were being lost, and under what conditions? I'd like to see if it can be fixed.
6.
by danobi 3y ago
Above two comments are very helpful, thanks. I've corrected the -m32 issue. And thanks for pointing out the x86/ABI assumptions. Had not considered that. It's certainly interesting to think about.
7.
by danobi 3y ago
I think it has to keep it for externally visible functions, right?
8.
by danobi 3y ago
BPF_PROG_RUN is great but unfortunately depends on the running kernel version. To that end, I wrote `vmtest` ( https://dxuuu.xyz/vmtest.html ) which is designed for the BPF_PROG_RUN use case.
9.
Vmtest: Run your tests in virtual machines(dxuuu.xyz)
3 points by danobi 3y ago|0 comments
10.
by danobi 4y ago
I use stock ios and mobius sync works pretty well. No issues so far over 1y+ of use.
11.
File capabilities and procfs(dxuuu.xyz)
1 points by danobi 4y ago|0 comments
12.
by danobi 4y ago
Was threading support ever added? I recall there being a few attempts. I tried aerc out for quite a bit but ultimately had to give it up for neomutt b/c mailing list discussions were impossible to follow without threading support.
13.
by danobi 4y ago
Are there any docs for how it's implemented?
14.
by danobi 5y ago
Completely agree. FWIW, I think procedural macros make a huge difference for ergonomics. For example, a "similar" library in C++ (libcereal) is still a PITA to use and debug.
15.
by danobi 5y ago
Because you can’t add a feature with a knob. And not all changes can be made in a module (eg core kernel). And even if they could, kernel internals are not stable and you would still need to rebase your out of tree modules.
16.
by danobi 5y ago
Your metabolism can change during your life. Different people can also have different metabolisms.
17.
Bpftrace v0.12 Released(github.com)
3 points by danobi 5y ago|0 comments
18.
by danobi 5y ago
Both parts (compiler backends & fuzzing) are immensely complicated stuff on their own. I can only imagine the trickery and head scratching that comes with the combination. I’ve worked on simpler approximations of both [0][1] before and
19.
by danobi 6y ago
Yes, exactly. > It looks like systemd-oomd is related to (based on? from the same people as?) Facebook's oomd Yep, I authored the original standalone oomd (along with many others' help) and Anita has been working on systemd-oom
20.
by danobi 6y ago
When a cgroup hits its memory.max the kernel OOM killer is invoked. systemd-oomd enables finer grained policy than the kernel OOM killer. systemd-oomd can also prevent livelocks (which memory.max does not).
21.
Libbpf-rs: eBPF for the Rust ecosystem(dxuuu.xyz)
3 points by danobi 6y ago|0 comments
22.
by danobi 6y ago
A possibly lighter weight alternative is libbpf-rs [0]. libbpf-rs is designed to take advantage of BPF's Compile-Once-Run-Everywhere functionality where you can ship a pre-compiled object file to production instead of an entire compile
23.
Understanding Btrfs Internals(dxuuu.xyz)
1 points by danobi 6y ago|0 comments
24.
Below: Interactive TUI System Monitor(github.com)
2 points by danobi 6y ago|0 comments
25.
/proc/[pid] and the missing threads(dxuuu.xyz)
2 points by danobi 6y ago|0 comments
26.
Bpftrace 0.10.0 Release Notes(github.com)
1 points by danobi 6y ago|1 comments
27.
by danobi 6y ago
It's explained in the second paragraph in the article.
28.
by danobi 7y ago
What if openat() or read() fails? More generally, what if there's a chain of syscalls and you _want_ one of them to fail?
29.
Bpftrace – high level tracing language for Linux(bpftrace.org)
4 points by danobi 7y ago|0 comments
30.
Bpftrace 0.9.3 Released(github.com)
1 points by danobi 7y ago|0 comments

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