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yarikoptic 2023-08-31 16:48:34 +00:00 • committed by admin
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doc/todo/the_same_path_looked_up_3_times_for_libpcre__42__.so/comment_2_61d70f4a06edaa593a17d47019be53de._comment Normal file
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[[!comment format=mdwn
username="yarikoptic"
avatar="http://cdn.libravatar.org/avatar/f11e9c84cb18d26a1748c33b48c924b4"
subject="comment 2"
date="2023-08-31T16:48:34Z"
content="""
I looked at it \"wrong way\" - it is not 3 more, it is twice more! after changing first threshold we get to the second check
```
>> nfailed init 'libpcre.*so'
>> wc -l
>> awk '/libpcre.*so.*ENOENT/{print}'
>> strace -f git-annex init
>> tee /dev/fd/2
...
[pid 1893] openat(AT_FDCWD, \"/usr/lib/git-annex.linux//lib/x86_64-linux-gnu/glibc-hwcaps/x86-64-v4/libpcre2-8.so.0\", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 1893] openat(AT_FDCWD, \"/usr/lib/git-annex.linux//lib/x86_64-linux-gnu/glibc-hwcaps/x86-64-v3/libpcre2-8.so.0\", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 1893] openat(AT_FDCWD, \"/usr/lib/git-annex.linux//lib/x86_64-linux-gnu/glibc-hwcaps/x86-64-v2/libpcre2-8.so.0\", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 1893] openat(AT_FDCWD, \"/usr/lib/git-annex.linux//lib/x86_64-linux-gnu/tls/haswell/libpcre2-8.so.0\", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 1893] openat(AT_FDCWD, \"/usr/lib/git-annex.linux//lib/x86_64-linux-gnu/tls/libpcre2-8.so.0\", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 1893] openat(AT_FDCWD, \"/usr/lib/git-annex.linux//lib/x86_64-linux-gnu/haswell/libpcre2-8.so.0\", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
> test 251 -lt 140
Error: Process completed with exit code 1.
```
so we are now getting twice more lookups for that single library for `annex init` as well, and that reaches 250. I will need to boost that threshold too. Overall -- sounds like some overhead would be \"twice slower\" now. Ideally we should find a way to workaround.
"""]]