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From: Andrew Fish <afish@apple.com>
To: prabin ca <prabinca4u@gmail.com>
Cc: Laszlo Ersek <lersek@redhat.com>,
	edk2-devel@lists.01.org, dandan.bi@intel.com
Subject: Re: Performance enabling of Event handler
Date: Thu, 06 Sep 2018 19:58:25 -0700	[thread overview]
Message-ID: <17A8CCBE-71A5-44E3-BBAC-7F067D5EB651@apple.com> (raw)
In-Reply-To: <F8ED7AD9-54F4-49D8-BF61-88B39DE3975F@gmail.com>

Prabin,

Last time I looked every call to PERF_START()/PERF_END() creates a new performance record. So it does not work well for a function that is called a large number of times. 

Thanks,

Andrew Fish

> On Sep 6, 2018, at 7:30 PM, prabin ca <prabinca4u@gmail.com> wrote:
> 
> Hi,
> PerformancePkg is not working with event handlers, but it’s working with normal functions handlers. 
> 
>> On 06-Sep-2018, at 3:28 PM, Laszlo Ersek <lersek@redhat.com> wrote:
>> 
>>> On 09/06/18 08:10, prabin ca wrote:
>>> Hi Team,
>>> 
>>> I’m used edk2 PerformancePkg for profiling cpu execution time taken by a event handler. Event is created successfully and event handler is also called successfully, but I can capture the performance of this event handler with PerformancePkg (by using perf_start and perf_end check points). This PerformancePkg is working fine with normal function calls.
>> 
>> Do you mean "can not", instead of "can"? (Sorry, I don't understand.)
>> 
>>> 
>>> Please help me to enable PerformancePkg action on event handler also.
>>> 
>> 
>> Hmmm, even with the suggested typo correction, I wouldn't know what to
>> suggest. Sorry!
>> 
>> Laszlo



  reply	other threads:[~2018-09-07  2:58 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-06  6:10 Performance enabling of Event handler prabin ca
2018-09-06  9:58 ` Laszlo Ersek
2018-09-07  2:30   ` prabin ca
2018-09-07  2:58     ` Andrew Fish [this message]
2018-09-07  3:16     ` Bi, Dandan
2018-09-07 15:57       ` prabin ca
2018-09-08  4:15         ` Bi, Dandan
2018-09-10 15:03         ` prabin ca

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