samba - Nov 2024 - Slow reply to "smbclient -NL localhost" : strace

On Sat, 2 Nov 2024 22:18:59 +0100
Gilles via samba <samba at lists.samba.org> wrote:
> Hello,
> 
> In case it makes sense to someone in the list, here's the output of 
> "strace smbclient -NL localhost", where it takes a good 10s to
get
> the list of shares:
> 
> https://pastebin.com/raw/Q5GPxBKW
> 
> Could it be something missing in smb.conf?
> 
> Thank you.
> 
> 
As I said previously, I do not think this has anything to do with
Samba. In an earlier post, you had this output when you ran the same
command using 'time':

real    0m12.500s
user    0m0.732s
sys     0m0.102s

The 'real' time is the total time it took to run the command, but
'user' + 'sys' is the actual time it took for the Samba part of
it, in
this case 0.834 seconds, the remaining 11.666 seconds is where your
problem lies, what is causing this ? 
That is what you need to trace, what is getting in the way, it doesn't
seem to be anything to do with Samba.

When it comes down to it, your 'strace' appears to be useless in this
context, there is no 'time' involved.

Rowland

On 04/11/2024 15:11, Rowland Penny via samba wrote:
> As I said previously, I do not think this has anything to do with
> Samba. In an earlier post, you had this output when you ran the same
> command using 'time':
>
> real    0m12.500s
> user    0m0.732s
> sys     0m0.102s
>
> The 'real' time is the total time it took to run the command, but
> 'user' + 'sys' is the actual time it took for the Samba
part of it, in
> this case 0.834 seconds, the remaining 11.666 seconds is where your
> problem lies, what is causing this ?
> That is what you need to trace, what is getting in the way, it doesn't
> seem to be anything to do with Samba.
>
> When it comes down to it, your 'strace' appears to be useless in
this
> context, there is no 'time' involved.
Thanks. So I'll look elsewhere to understand why that command is taking 
so long.

FWIW, there's no delay after I run it once? but only for a couple of 
minutes.