What is the best practice for managing ABI changes to process-shared-memory-data during library upgrades?
There, # of calls to getpwuid() is normally dominated by # of calls to stat() so performance of former is largely irrelevant.
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With any caching via NSS service modules the calls to stat() could be zero e.g. SSSD or NSCD cache lookups. Caches rule! ;-)
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I don't mean getpwuid calls stat. I mean the normal usage case is the app calling it once per stat (e.g. ls output).
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Good insight about syscalls being tied closely to IdM calls in an average application. I won't restrict it just to stat().
End of conversation
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