Hi All, First off my apologies if this is the wrong place to be asking.
I seem to have a problem where the smbd process is using a massive amount of CPU for network transfers. It averages about 70-90% usage on both cores of a dual-core machine when transferring between disks (or over the network) using samba/cifs shares.
Along with this I also notice the transfers going from a steady 30-40mb/sec to anywhere from 1-4MB/sec. It seems to resolve itself then re-occur multiple times during a transfer. I have tried tweaking buffer settings and the like with no success.
iostat shows corresponding transfer rates that match what Windows is reporting for transfer speeds.
Any ideas where I can start looking? I've done a fair bit of looking, but I'm not quite ready to say it's a hardware problem just yet.
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