memory usage of symbolizer's linerCache?

[dreamerlzl]

Judging from my understanding of the code and the memory profile of parca, it seems that there are no configurations/controls for the growing memory usage of symbolization caching:

parca/pkg/symbol/elfutils/debuginfofile.go

Line 43 in 6dae29a

subprograms map[dwarf.Offset][]*godwarf.Tree

Currently I don't know how to set a memory limit for parca properly so thanks for any suggestion/insight.

[dreamerlzl]

[brancz]

I think we just need to change the whole symbolization strategy here. We can do all of this entirely without the godwarf.LoadTree stuff and it'll make everything way faster, at that point we probably won't even need the liner cache anymore.

[dreamerlzl]

I think we just need to change the whole symbolization strategy here. We can do all of this entirely without the godwarf.LoadTree stuff and it'll make everything way faster, at that point we probably won't even need the liner cache anymore.

Thanks for the update. So currently we can do nothing here to limit the memory growing, right?

[brancz]

That's right, but I hope to get to working on this soon, as right now it's quite terrible as it depends on the binaries involved how much memory is used, that shouldn't be the case, and it's definitely possible to change this!