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Store heapsnapshot files in tempdir() instead of current directory #50026
Store heapsnapshot files in tempdir() instead of current directory #50026
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Maybe add
@info "Writing snapshot to $f"
before returning, so the user can find the file to upload to Chrome? :)
I leave it to others to review whether the PR is needed/appropriate, but I find these randomly generated file paths impossible to find otherwise.
@raminammour's suggestion makes sense to me. I vaguely remembered that it printed the filepath already? Maybe i'm misremembering though. Also CC: @IanButterworth |
The file path is returned so no need to print it inside the function. |
This PR should have updated the docstring since it explicitly mentions the storage location. I would have preferred the option to pass in the storage location, instead of using tmp. These files need to be found by an external program manually and I often want to compare overtime. |
Yeah and maybe a better default is a subdir of the primary depot? |
Valentin: there is already a method that takes the output path. This is just changing the default if you don't provide it. +1 that we need to update the docstring though |
That provides the absolute path though.
|
WDYM? tempdir is deleted on reboot on posix (and never cleaned up on Windows due to lack of tmpfs) |
I lose the correlation of what I am working on and what the snapshot belongs to. On restart I lose the file. |
What about default to cd and if it's unwritable warn and write to tempdir ? |
So use the API then where you give the path then? I feel like I'm missing something... Alternatively, remove this API completely. |
We defaulted to pwd before this PR. That is what was changed here. |
The trouble is that there's already an API that specifies the full path. I guess we could also add a kwarg for Would that be nicer in your opinion? Is that requested change independent from the change in the default location? |
Yes, using kwargs to separate dir from filename would be great. I do think we should revert the default change. |
I think the concern with the current default of writing to the I think you're saying: that's the right choice for us to make, and we should just ask the production deployment scenarios to set a different output directory? I think I am okay with that. I just want to acknowledge the spirit of the change in this PR. |
…h ~= rootdir (JuliaLang#50026)" This reverts commit 877b368.
Backported PRs: - [x] #50411 <!-- Fix weird dispatch of * with zero arguments --> - [x] #50202 <!-- Remove dynamic dispatch from _wait/wait2 --> - [x] #50064 <!-- Fix numbered prompt with input only with comment --> - [x] #50026 <!-- Store heapsnapshot files in tempdir() instead of current directory --> - [x] #50402 <!-- Add CPU feature helper function --> - [x] #50387 <!-- update newpages pointer after actually sweeping pages --> - [x] #50424 <!-- avoid potential type-instability in _replace_(str, ...) --> - [x] #50444 <!-- Optimize getfield lowering to avoid boxing in some cases --> - [x] #50474 <!-- docs: Fix a `!!! note` which was miscapitalized --> - [x] #50466 <!-- relax assertion involving pg->nold to reflect that it may be a bit in… --> - [x] #50490 <!-- Fix compat annotation for italic printstyled --> - [x] #50488 <!-- fix typo in `Base.isassigned` with `Tridiagonal` --> - [x] #50476 <!-- Profile: Add specifying dir for `take_heap_snapshot` and handling if current dir is unwritable --> - [x] #50461 <!-- fix typo in the --gcthreads argument description --> - [x] #50528 <!-- ssair: Correctly handle stmt insertion at end of basic block --> - [x] #50533 <!-- ensure internal_obj_base_ptr checks whether objects past freelist pointer are in freelist --> - [x] #49322 <!-- improve cat design / performance --> - [x] #50540 <!-- gc: remove over-eager assertion --> - [x] #50542 <!-- gf: remove unnecessary assert cycle==depth --> - [x] #50559 <!-- Expand kwcall lowering positional default check to vararg --> - [x] #50058 <!-- Add unwrapping mechanism for triangular mul and solves --> - [x] #50551 <!-- typeintersect: also record chained `innervars` --> - [x] #50552 <!-- read(io, Char): fix read with too many leading ones --> - [x] #50541 <!-- precompile: ensure globals are not accidentally created where disallowed --> - [x] #50576 <!-- use atomic compare exchange when setting the GC mark-bit --> - [x] #50578 <!-- gf: make method overwrite/delete an error during precompile --> - [x] #50516 <!-- Fix visibility of assert on GCC12/13 --> - [x] #50597 <!-- Fix memory corruption if task is launched inside finalizer --> - [x] #50591 <!-- build: fix various makefile bugs --> - [x] #50599 <!-- faster invalid object lookup in conservative gc --> - [x] #50634 <!-- 🤖 [master] Bump the SparseArrays stdlib from b4b0e72 to 99c99b4 --> - [x] #50639 <!-- Backport LLVM patches to fix various issues. --> - [x] #50546 <!-- Revert storage of method instance in LineInfoNode --> - [x] #50631 <!-- Shift DCE pass to optimize imaging mode code better --> - [x] #50525 <!-- only check that values are finite in `generic_lufact` when `check=true` --> - [x] #50587 <!-- isassigned for ranges with BigInt indices --> - [x] #50144 <!-- Page based heap size heuristics --> Need manual backport: - [ ] #50595 <!-- Rename ENV variable `JULIA_USE_NEW_PARSER` -> `JULIA_USE_FLISP_PARSER` --> Non-merged PRs with backport label: - [ ] #50637 <!-- Remove SparseArrays legacy code --> - [ ] #50618 <!-- inference: continue const-prop' when concrete-eval returns non-inlineable --> - [ ] #50598 <!-- only limit types in stack traces in the REPL --> - [ ] #50594 <!-- Disallow non-index Integer types in isassigned --> - [ ] #50568 <!-- `Array(::AbstractRange)` should return an `Array` --> - [ ] #50523 <!-- Avoid generic call in most cases for getproperty --> - [ ] #50172 <!-- print feature flags used for matching pkgimage -->
Currently, Julia stores the heapsnapshot in the current directory which is sometimes not writeable by the process and also not a good choice.
This PR stores the file in the temporary directory that
tempdir()
returns.