On January 19, 2021 4:27:04 AM UTC, Hung Nguyen Gia via openindiana-discuss <openindiana-discuss@openindiana.org> wrote: >OI included many shells. So far I only stick with the default, bash. > >But the performance is very bad. e.g: when using pkgsrc to build >packages. > >As I have said on this list: pkgsrc bootstrap on OI is 4x slower than >on FreeBSD. Building packages also that slower. > >I think the problem is of the shell. Because I see it checking for >something very slowly. > >The output printed on the screen 'Checking for...' is line by line, >very slow. Meanwhile, the same thing on FreeBSD is blazing fast that I >can't even see what's going on at all. > >I'm thinking about using other shell than bash. > >But I can't test with each shell. They are too many. > >From your own experience, which shell is the fastest? > >_______________________________________________ >openindiana-discuss mailing list >openindiana-discuss@openindiana.org >https://openindiana.org/mailman/listinfo/openindiana-discuss
This matches my experience sadly, also on systems with ksh93 as the real default system shell since Solaris, and e.g. configure scripts using that as-is or patched to use bash explicitly. Same codebase mounted from OI over NFS to a Linux VM passes configuration much faster - so it is not e.g. overheads of disk/FS layers. Similarly for shell/fork heavy tests like https://github.com/42ity/JSON.sh unit-testing (nearly zero I/O, but lots of shells tried) - the linux worker completes minutes before OI does. As far as I could unravel and guess, this is just about a more expensive forking routine (RBAC and all) than on less protective OSes. This is a PITA sadly, but unless something is just broken in the kernel but rather really does more work by design because of different goals and trade-offs, then so be it. If something *is* broken and can be made faster, it would be much appreciated :-) Jim -- Typos courtesy of K-9 Mail on my Android _______________________________________________ openindiana-discuss mailing list openindiana-discuss@openindiana.org https://openindiana.org/mailman/listinfo/openindiana-discuss
