Messages in this thread | | | Subject | Re: [sched_delayed] sched: RT throttling activated | From | Johannes Berg <> | Date | Fri, 23 Aug 2013 14:33:42 +0200 |
| |
On Fri, 2013-08-23 at 14:10 +0200, Peter Zijlstra wrote:
> > 2161 FF [irq/50-iwlwifi] > > Oh a threaded interrupt, I presume you're not using "threadiqrs" since > this is the only interrupt thread around and I see a > 'request_threaded_irq()' call in > drivers/net/wireless/iwlwifi/pcie/trans.c > > And wow, why would that thing consume that much cpu.
How much is "that much"?
> Johill, ever seen the iwlwifi interrupt go 'funny' and consume gobs of > cpu-time?
Not really, no, though if you do a lot of data transfer it can actually consume a fair bit of CPU - made better by two somewhat recent patches, commits 01911dab97cb3e21e640aaca82689acec00ed848 and 68972c46f2975d3d61f9dc9f311f77bfc8a8b12b.
johannes
| |