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Dan Ritter <dsr at randomstring.org> writes: >> Okay, perhaps it is the Ethernet driver that's causing the ksoftirq/1 >> thread to spin at 100% cpu usage. I really need to track this down, >> because I'm losing bits in my TV records when this happens, and it's >> also causing other bits to be delayed. > > ksoftirqd is run once per core, so this is something causing > your second core (/0, /1, ...) to be woken up an awful lot. > > Anything obvious in dmesg? Nope. >> Maybe I should move my MySQL database to another machine? > > Is it on a disk separate from your recordings? No, it's not. And it's been fine this way for the past 6-8 years. It's only started being an issue over the past few months. But the recording loss seems to happen simultaneously with the softirq spinning. Recording comes from some HD HomeRun devices. I could try to separate it. Or I could try moving mysql to another machine. I wonder -- how well would mysql run on a Plug computer, either a Sheeva or Guru plug? > -dsr- -derek -- Derek Atkins, SB '93 MIT EE, SM '95 MIT Media Laboratory Member, MIT Student Information Processing Board (SIPB) URL: http://web.mit.edu/warlord/ PP-ASEL-IA N1NWH warlord at MIT.EDU PGP key available
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