Hi Paul, Paul Gevers, on 2025-11-06: > I looked at the results of the autopkgtest of your package because I was > investigating memory issues on our ci.d.n infrastructure. I noticed that > your package uses an insane amount of memory. > > On our amd64 worker, I saw it peaking at 51% of 250 GB. On our loong64 > worker I saw it peaking at 83% of 127 GB. Now there's an argument to make > that the infra should protect itself against this kind of misbehavior, but > currently it doesn't (we're working on that). I would appreciate it if you > limit the test on memory usage.
My apologies, the software preallocates memory for its Java runtime environment, calculated on what it estimates being available on the machine as a whole. I understand this does not play well on shared systems; that being said, I do see some code that tries to accomodate the memory allocation when running on slurm-wlm clusters. I don't have a good idea how to address the issue of large memory consumption of the software, but would it help if I implement a cap of memory preallocation in autopkgtest context? If so, I consider implementing a check based on the definition of the AUTOPKGTEST_TMP environment variable. That sounds very hackish, but would avoid hammering on ci.d.n, while having low risk of introducing possible performance regressions for end users. > In the past I already added a reject list entry on riscv64 as the test times > out. It also seems to take much more time on loong64 than on other > architectures, so I'm also going to add it to the reject list for loong64 > too. You don't need to investigate this as riscv64 has some under powered > workers so I consider that an infrastructure problem and loong64 isn't a > release architecture yet, but solutions for both architectures are welcome. Yes, that might have been 2021 or so, I rediscovered a patch of mine to cap the memory usage on 32-bit platforms at 2000MiB. Thank you for raising that issue! Have a nice day, :) -- .''`. Étienne Mollier <[email protected]> : :' : pgp: 8f91 b227 c7d6 f2b1 948c 8236 793c f67e 8f0d 11da `. `' sent from /dev/pts/3, please excuse my verbosity `- on air: Wobbler - Naiad Dreams
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