CPU Problem on Solaris and 2.2.2

[Peter Bryant]

Hi we have a pretty nasty CPU usage problem running Samba 2.2.2 on Solaris
(SunOS infpdb01.atinfopop.com 5.8 Generic_108528-03 sun4u sparc
SUNW,Ultra-80)

The server was coping OK with the load then 'something changed' and CPU
usage has been climbing over the last couple of weeks.  I've posted CPU,
config files and a sambastatus snapshot below.  Other information that may
be helpful:
- We have a fair amount of load (maybe 20 8K file requests a second)
- The load has not changed much over the last couple of months (but CPU has
been creeping up).
- we have lots of files (30K or so)
- directories typically have no more than a dozen of so files each
- we are connecting to the server from 4 Windows2000 clients (application
servers)
- server is a SunE420R dual proc with a couple of Gb memory (also running
Oracle)
- storage is on an HP256 SAN device.

Any help you can provide is appreciated.  Any troubleshooting advice also
appreciated.  Thanks!


                              User      CPU Util     Cum    Block
Block
Process Name   PID   PPID Pri Name   (  200% max)    CPU   IO Rate    RSS
On
----------------------------------------------------------------------------
----
smbd         23113  23083  20 root     75.3/28.6 53047.7  0.2/ 0.9  11.1mb
NONE
smbd         23114  23083  41 root     70.9/29.5 54763.2  0.0/ 0.9  11.1mb
PRI
smbd         23111  23083  32 root     19.8/29.1 53920.2  0.0/ 0.8  11.2mb
PRI
smbd         23112  23083  40 root      9.9/31.4 58260.9  0.0/ 3.3  12.8mb
PRI

Config File:

[global]
        workgroup = US
        netbios name = xxxSAMBA01
        interfaces = 208.xx.xxx.xxx
        security = SHARE
        log file = /var/adm/smb.log.%m
        shared mem size = 104857600
        os level = 65
        comment = xxxx-smb
        guest account = xxx
        create mask = 0644
        directory mask = 0775

[app_data]
        path = /app_data
        writeable = Yes
        create mask = 0775
        guest ok = Yes
        locking = No
        oplocks = No

Status:
[infp at infpdb01:/export/home/infp]$ /usr/local/samba/bin/smbstatus -d
Unknown parameter encountered: "shared mem size"
Ignoring unknown parameter "shared mem size"
using configfile = /usr/local/samba/lib/smb.conf
Opened status file ÿ¾÷0ÿ¶

Samba version 2.2.2
Service      uid      gid      pid     machine
----------------------------------------------
app_data     infp     admins   23111   xxxxp03 (208.xx.83.249) Mon Oct 29
16:19:39 2001
app_data     infp     admins   23114   xxxxp02 (208.xx.83.248) Mon Oct 29
16:19:40 2001
app_data     infp     admins   23112   xxxxp04 (208.xx.83.250) Mon Oct 29
16:19:39 2001
app_data     infp     admins   23113   xxxxp01 (208.xx.83.247) Mon Oct 29
16:19:39 2001

Locked files:
Pid    DenyMode   R/W        Oplock           Name
--------------------------------------------------
23111  DENY_NONE  RDONLY     NONE
/app_data/data/xxxx/uploads/xxxx_m.grande.bmp   Wed Oct 31 19:39:32 2001