Messages in this thread | ![/](/images/icornerl.gif) | | Subject | Re: [patch] Re: [perf] Finding uninstalled modules Was Re: mailing list for trace users | From | Mike Galbraith <> | Date | Wed, 23 Sep 2009 14:00:18 +0200 |
| |
On Wed, 2009-09-23 at 13:32 +0200, Mike Galbraith wrote: > On Wed, 2009-09-23 at 12:55 +0300, Avi Kivity wrote: > > On 09/23/2009 12:20 PM, Mike Galbraith wrote: > > > > > > Yup, brown baggie variety. Oh darn. > > > > > > perf_counter tools: fix brown baggie module symbol loading bug. > > > > > > If there are no modules currently loaded, or the last module scanned is not > > > loaded, dso__load_modules() steps on the value from dso__load_vmlinux(), so > > > we happily load the kallsyms symbols on top of what we've already loaded. > > > > > > Fix that such that the total count of symbols loaded is returned. Should > > > module symbol load fail after parsing of vmlinux, is's a hard failure, so > > > do not silently fall-back to kallsyms. > > > > > > > > > > Still fails, but differently. Now 'annotate -k ... -m -v -v' doesn't > > list vmx_vcpu_run at all, even though it's prominent in 'perf top'. > > Hm. I just did a record, then report with and without -k -m, and now > get identical reports with your config (plus some more modules) here.
With your config, I can't even get my e1000 flood pinging friztbox to show up in perf top without a 70 line monitor. Mondo overhead.
------------------------------------------------------------------------------ PerfTop: 3860 irqs/sec kernel:94.0% [10000Hz instructions], (all, cpu: 0) ------------------------------------------------------------------------------
samples pcnt kernel function _______ _____ _______________
1702.00 - 5.5% : _spin_lock_irqsave 1659.00 - 5.3% : add_preempt_count 1516.00 - 4.9% : sub_preempt_count 1330.00 - 4.3% : _spin_unlock_irqrestore 1132.00 - 3.6% : debug_smp_processor_id 844.00 - 2.7% : find_busiest_group 639.00 - 2.1% : schedule 629.00 - 2.0% : get_parent_ip 586.00 - 1.9% : test_ti_thread_flag .....
310.00 - 0.3% : sys_recvmsg 303.00 - 0.3% : e1000_clean_rx_irq [e1000e] 302.00 - 0.3% : raw_sendmsg 300.00 - 0.3% : e1000_xmit_frame [e1000e]
| ![\](/images/icornerr.gif) |