The max we have are 350 to 400 simultaneous connections. This
should work with a G5 Dual and enough memory.
Obviously not, at least not for your configuration which has length
directory structures which require a lot of parsing and caching.
While you say that if one user connects you see %CPU peg. %CPU is
not a metric and in fact you want %CPU at 100% as anything else is
an inefficiency with resources. The part you've missed is that this
does manage to scale and that as users increase it still does work,
it just takes 40 seconds.
It is okay for me, that a task uses up all the cpu, but why does it
need such much cpu, that is my question.
If you run a test where these same users connect to a different
test sharepoint with fewer directory entries I'll bet donuts that
you don't have this problem. That will tell you that the problem
isn't with smbd but with poor configuration of your filesystem. So
to fix the problem you'll need to address that.
The not so logical part for me is, that this server hat no problems
to serve data to 350 afp-users and 50 smb-users with 10.3 and also
now with 10.4.8 there is no problem with the 350 afp-users but 1
single smb-user makes the server stall for quiet a while:
At the moment I have over 91 apf-users logged in and the cpu is on
50% but when just one smb-user logs in, the cpu goes to 100% for 3
minutes and then the server goes back to normal and the content of
the share appears on the client desktop. To mount the same directory
over afp works without and hit on the cpu of the server and the 720
folders appear after 3 seconds.
I did this stuff but the the problem also occurs if there are zero
AFP- and only 1 SMB-user connected. So it has nothing to do with
overload of the server.
No it does not logically follow that the server is overloaded, it
follows that you've asked it to perform a task that takes more time
then you'd like to to the complexit of the task given it.
Can it really be, that a task, that is no problem for afp to perform,
is such a huge problem for the samba-server? Can it really be, that
for the samba server it is such a huge deal to share a directory with
720 folders in it? If so should this not be mentioned somewhere as
limiatations of the samba server?
Also, is this server maxed out on memory?
it has now 8GB of RAM.
Thank you very much for your time and knowhow!
With best regards
Tobias Linder-Geiger
CTO Mac Division Letec AG
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