The Samba-Bugzilla – Bug 681
smbclient much slower due to charser conv
Last modified: 2005-08-24 10:19:27 UTC
3.0.1pre1 on Red Hat 7.3 glibc-2.2.5-42
smbclient is much slower due to charset conversion.
On the same host I use smbclient from 3.0 and from 2.2.7.
I test with (note that the output of the command would be 49 lines long)
time smbclient -s /tmp/file.conf -L host -Uunknown% >/dev/null 2>&1
First I try with file.conf with just "workgroup = workgroup".
2.2.7 takes about 0.300, 3.0.0 takes about 0.320
Then I try adding for 2.2.7:
character set = iso8859-1
client code page = 850
unix charset = iso8859-15
display charset = iso8859-15
dos charset = cp850
time for 2.2.7 is almost unchanged, time for 3.0.0 is about 0.950.
I understand the need to support unicode internally, but is there no way to make
this better? I have many scripts that suddenly slow down.
$ ldd /usr/bin/smbclient
libreadline.so.4 => /usr/lib/libreadline.so.4 (0x40013000)
libncurses.so.5 => /usr/lib/libncurses.so.5 (0x4003a000)
libcrypt.so.1 => /lib/libcrypt.so.1 (0x40087000)
libresolv.so.2 => /lib/libresolv.so.2 (0x400b4000)
libnsl.so.1 => /lib/libnsl.so.1 (0x400c4000)
libdl.so.2 => /lib/libdl.so.2 (0x400d8000)
libpopt.so.0 => /usr/lib/libpopt.so.0 (0x400db000)
libc.so.6 => /lib/libc.so.6 (0x400e3000)
/lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x40000000)
Startup time, particlularly when required for correctneess, it's really much of
a concern. If your scripts are dramaticly slower, consier issuing multiple
commands to each smbclient.
By specifying a charset, you cause us to use iconv etc, which do take time to
iconv performance tuning is ongoing. Much work
done since 3.0.0. Marking as fixed just so we can
get some more feedback.
sorry for the same, cleaning up the database to prevent unecessary reopens of bugs.