in reply to Re: CPAN module install really slow
in thread CPAN module install really slow

Hi marto

I have now installed cpanm and its lightning fast as I would expect. Have no idea what, where or how to configure things to get CPAN working as I would expect but guess I can continue to use cpanm.

Thanks

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Re^3: CPAN module install really slow
by marto (Cardinal) on Jul 13, 2015 at 12:42 UTC

    Within a cpan session o conf will display the current configuration. I mentioned previously the CPAN::SQLite config change, or you could compare settings across systems, though if you're happy with cpanm I'm pretty sure you'll stick with it.

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[d/l]
Re^3: CPAN module install really slow
by gsee (Acolyte) on Jul 13, 2015 at 12:51 UTC

    I think I spoke too soon.

    It appears to be the Makefile.PL that is taking ages and for every module install? 

    ps -ef | grep cpanm
admtst 10665 18671  0 13:01 pts/1    00:00:00 /opt/app/release/perl/li
+nux/5.18.2-7/bin/perl 5.18.2-7/bin/cpanm --verbose LWP::UserAgent

pstree -pa 10665
cpanm,10665 5.18.2-7/bin/cpanm --verbose LWP::UserAgent
  `-perl,11170 Makefile.PL

    [download]
    Yes if I do manual install of any of these modules it pretty instant.
[reply]
[d/l]

      Are you sure you're comparing the same things here? Using a tool like cpan/cpanm installs dependencies, running perl Makefile.PL does not. LWP::UserAgent has many dependencies.

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[d/l]

        Yes, the manual install lets you know the dependencies, I then download those and install them. The manual process to get all dependencies, gunzip - untar - build - test - install is still faster than cpanm doing it.

        Also, I have been using cpanm --verbose which shows the install of each dependency, it gets 'stuck' at the same place for each dependency as well.

[reply]
      Some further information which may help someone help me!

      If I run the cpanm command with strace, I get the following output: 

      ......
......
open("/home/admtst/.cpanm/work/1436872577.16214/build.log", O_WRONLY|O
+_CREAT|O_APPEND, 0666) = 4
lseek(4, 0, SEEK_END)                   = 2506
ioctl(4, SNDCTL_TMR_TIMEBASE or TCGETS, 0x7fffd6360540) = -1 ENOTTY (I
+nappropriate ioctl for device)
lseek(4, 0, SEEK_CUR)                   = 2506
fstat(4, {st_mode=S_IFREG|0644, st_size=2506, ...}) = 0
fcntl(4, F_SETFD, FD_CLOEXEC)           = 0
write(4, "Configuring Email-MIME-ContentTy"..., 41) = 41
close(4)                                = 0
stat("cpanfile", 0x7651a0)              = -1 ENOENT (No such file or d
+irectory)
stat("Build.PL", 0x7651a0)              = -1 ENOENT (No such file or d
+irectory)
stat("Makefile.PL", {st_mode=S_IFREG|0644, st_size=1327, ...}) = 0
write(2, "Running Makefile.PL\n", 20Running Makefile.PL
)   = 20
open("/home/admtst/.cpanm/work/1436872577.16214/build.log", O_WRONLY|O
+_CREAT|O_APPEND, 0666) = 4
lseek(4, 0, SEEK_END)                   = 2547
ioctl(4, SNDCTL_TMR_TIMEBASE or TCGETS, 0x7fffd6360540) = -1 ENOTTY (I
+nappropriate ioctl for device)
lseek(4, 0, SEEK_CUR)                   = 2547
fstat(4, {st_mode=S_IFREG|0644, st_size=2547, ...}) = 0
fcntl(4, F_SETFD, FD_CLOEXEC)           = 0
write(4, "Running Makefile.PL\n", 20)   = 20
close(4)                                = 0
write(1, "Configuring Email-MIME-ContentTy"..., 45Configuring Email-MI
+ME-ContentType-1.018 ... ) = 45
rt_sigprocmask(SIG_SETMASK, ~[RTMIN RT_1], [], 8) = 0
clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIG
+CHLD, child_tidptr=0x7f74c45de9d0) = 16777
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
wait4(16777, Checking if your kit is complete...
Looks good

      [download]
      It has a wait command which I am unsure about, any ideas?

[reply]
[d/l]
        strace -f should show child processes, too.
        لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ
[reply]
[d/l]

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