Appaling performance on Solaris 10 running on M5000 Server
Appaling performance on Solaris 10 running on M5000 Server
(OP)
Hi
We have Solaris 10 running on a M5000 server.
We are trying to investigate a serious performance issue on the server. We have looked at various things such as I/O, CPU, memory, network...
CPU
The CPU seems to be 80% idle.
Disk I/O
isk I/O is not so bad.
We have occasional peak on /tmp
Memory utilization
Around 40% of memory is free, the system is not swapping too much.
Network
the network utilization is around 50%.
The system has 64 cores 128GB physical memory, 1GB network (fibre), 4 128GB internal disks. We have mirrored 2 disks together to make it two separate mirrored volumes.
I have ran out of ideas, I'm not sure where else to look.
Any help will be greatly appreciated.
Thanks and Regards
KBR
We have Solaris 10 running on a M5000 server.
We are trying to investigate a serious performance issue on the server. We have looked at various things such as I/O, CPU, memory, network...
CPU
The CPU seems to be 80% idle.
Disk I/O
isk I/O is not so bad.
We have occasional peak on /tmp
Memory utilization
Around 40% of memory is free, the system is not swapping too much.
Network
the network utilization is around 50%.
The system has 64 cores 128GB physical memory, 1GB network (fibre), 4 128GB internal disks. We have mirrored 2 disks together to make it two separate mirrored volumes.
I have ran out of ideas, I'm not sure where else to look.
Any help will be greatly appreciated.
Thanks and Regards
KBR
RE: Appaling performance on Solaris 10 running on M5000 Server
RE: Appaling performance on Solaris 10 running on M5000 Server
I was installing Solaris 10 on a PowerEdge 2850 with a PERC RAID card....it was horribly slow even though there was no disk or cpu activity. I reconfigured it not to use RAID and suddenly everything was fine. I then traced it to a compatability issue with my PERC card.
Try running it in SCSI and not RAID...see if that fixes it
RE: Appaling performance on Solaris 10 running on M5000 Server
The internet - allowing those who don't know what they're talking about to have their say.
RE: Appaling performance on Solaris 10 running on M5000 Server
System is not swapping much. Well with 128GB of RAM, and you have 40% free memory, I would ask why you are paging.
Disk I/O isn't bad. What do you consider bad? And you state it peaks on /tmp. /tmp is a filesystem, and if you only have two disks, then most other filesystems will have the same disk as /tmp.
Running a database? Java? Not even a vmstat or prstat. Did this just begin occuring?
I have 7 years on large Solaris servers and 16 years on large AIX servers, so a bit of advice: if you want some direction on where to look, provide some data.