Fixes #43015 for me and hopefully also similar issues.
== Resource consumption ==
TL;DR: no change for small-memory cases, less CPU for large-memory cases.
I assume almost all of the large memory usage is just the expression
evaluation and managed by the GC, so I used just `nix-env -q...` to test.
Old and new lines for each command follow. I tried to run each several
times, but the values were very stable (<1% difference on re-runs),
so only one line for each command-version pair is provided.
$ time nix-env -f . -qaP --description -A nix >/dev/null
- 0.06user 0.01system 0:00.07elapsed 101%CPU (0avgtext+0avgdata 29036maxresident)k
+ 0.06user 0.01system 0:00.07elapsed 102%CPU (0avgtext+0avgdata 29864maxresident)k
$ time nix-env -f . -qaP --description >/dev/null
- 6.45user 0.36system 0:06.82elapsed 99%CPU (0avgtext+0avgdata 1021024maxresident)k
+ 6.23user 0.33system 0:06.57elapsed 100%CPU (0avgtext+0avgdata 938408maxresident)k
$ time nix-env -f . --show-trace -qa --drv-path --system --meta --xml 2>&1 >/dev/null
- 56.35user 0.96system 0:31.03elapsed 184%CPU (0avgtext+0avgdata 3207708maxresident)k
+ 44.80user 0.91system 0:26.12elapsed 175%CPU (0avgtext+0avgdata 3192696maxresident)k
$ time ./result-nix-large/bin/nix-instantiate --dry-run --eval --strict \
--show-trace ./maintainers/scripts/eval-release.nix > /dev/null
- Too many heap sections: Increase MAXHINCR or MAX_HEAP_SECTS
- Command terminated by signal 6
- 175.18user 2.68system 1:17.42elapsed 229%CPU (0avgtext+0avgdata 8468440maxresident)k
+ 178.48user 2.78system 1:15.11elapsed 241%CPU (0avgtext+0avgdata 8460572maxresident)k
* muse: init at version 3.0.2
Added MusE; an application for working with midi. Allowing recording
from midi instruments, playback and editing of midi files.
* muse: remove unnecessary dependencies
-builds and works just fine without listing these
* Use fetchFromGitHub and add sha256
The deep merge caused all the options to be unset when generating docs, unless quagga was enabled.
Using imports, instead, properly allows the documentation to be generated.
Bold marked applicable changelog entries:
- Support extended attributes (xattr) in forward mode<Paste>
- Add -fsck function
- Fix several symlink race attacks
- Use memory pools for buffer handling
- Parallelize file content encryption
- Use HKDF to derive separate keys for GCM and EME
