On Fri, June 5, 2015 14:27, Mark Kettenis wrote:
>> Date: Fri, 5 Jun 2015 11:15:38 +0100
>> From: Stuart Henderson <st...@openbsd.org>
>>
>> net/samba4 is in the ports tree but not currently enabled in the build,
>> we're still only using samba 3.x for various reasons, but unfortunately
>> samba 3 is getting decreasingly useful as more Windows setups move to
>> newer versions.
>>
>> One of the issues is that startup of samba4 on OpenBSD is very slow
>> indeed, seemingly before control is transferred to the program. From
>> the LD_DEBUG output with timestamps (using the very handy ts(1) from
>> "moreutils"):
>>
>> # LD_DEBUG=1 smbd -D 2>&1 | ts %.s
>> <..snip..>
>> 1433498513.546306 examining: '/usr/local/lib/libhogweed.so.1.1'
>> 1433498513.546323 loading: libnettle.so.1.2 required by
>> /usr/local/lib/libhogweed.so.1.1
>> 1433498513.546339 loading: libgmp.so.9.0 required by
>> /usr/local/lib/libhogweed.so.1.1
>> 1433498513.546354 linking dep /usr/local/lib/libnettle.so.1.2 as child of
>> /usr/local/lib/libhogweed.so.1.1
>> 1433498513.546370 linking dep /usr/local/lib/libgmp.so.9.0 as child of
>> /usr/local/lib/libhogweed.so.1.1
>> 1433498513.546386 examining: '/usr/local/lib/libgmp.so.9.0'
>> 1433498584.125659 flags /usr/libexec/ld.so = 0x0
>> 1433498584.125783 obj /usr/libexec/ld.so has smbd as head
>> 1433498584.149165 relocation took 0.023504
>> 1433498584.149215 Start End Type Open Ref
>> GrpRef Name
>> 1433498584.149249 000004bec6500000 000004bec6910000 exe 1 0 0
>> smbd
>> 1433498584.149272 000004c19b74e000 000004c19bb60000 rlib 0 107 0
>> /usr/lib/libpthread.so.19.0
>> 1433498584.149293 000004c18f3df000 000004c18f812000 rlib 0 75 0
>> /usr/local/lib/libsamba-util.so.0.0
>> <..snip..>
>>
>> - a 74 second delay after "examining: '/usr/local/lib/libgmp.so.9.0'".
>> Does anyone have suggestions for finding out what's going on here?
>> Full text snipped from the above is at
>> http://junkpile.org/samba4-lddebug.txt
>
> My first guess would have been that it is spending a lot of time on
> initial relocations. But the line:
>
> 1433498584.149165 relocation took 0.023504
>
> pretty much rules that out. My suggestion would be to add a few more
> DL_DEB() statements inside of ld.so/loader.c:_dl_boot(), starting just
> after the _dl_load_dep_libs() call in that function and try to narrow
> it down.
>
>
Vadim made an attempt to improve things. May be this can share some light.
http://marc.info/?l=openbsd-ports&m=140051145330799&w=2
http://marc.info/?l=openbsd-ports&m=140078438824316&w=2
I've searched old mails and found that 4.0.3 was starting with normal speed. I
have ldd output for 4.0.3 and 4.0.17 to compare.
