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From: Andres Freund <andres@anarazel.de>
To: Amit Kapila <amit.kapila16@gmail.com>
To: Amit Kapila <amit.kapila16@gmail.com>
Cc: Robert Haas <robertmhaas@gmail.com>
Cc: Amit Kapila <amit.kapila@huawei.com>
Cc: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Васильев Дмитрий <d.vasilyev@postgrespro.ru>
Cc: pgsql-hackers@postgresql.org <pgsql-hackers@postgresql.org>
Cc: Robert Haas <robertmhaas@gmail.com>
Cc: Amit Kapila <amit.kapila@huawei.com>
Cc: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Васильев Дмитрий <d.vasilyev@postgrespro.ru>
Cc: pgsql-hackers@postgresql.org <pgsql-hackers@postgresql.org>
Subject: Re: Performance degradation in commit ac1d794
Date: Fri, 18 Mar 2016 23:44:31 -0700
Message-ID: <A8DA97CC-BBAB-4AD4-B8D4-415AF9AC76F9@anarazel.de> (raw)
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On March 18, 2016 11:32:53 PM PDT, Amit Kapila <amit.kapila16@gmail.com> wrote:
>On Sat, Mar 19, 2016 at 12:00 AM, Andres Freund <andres@anarazel.de>
>wrote:
>>
>> On 2016-03-18 20:14:07 +0530, Amit Kapila wrote:
>>
>> > I have done some
>> > tests on Windows with 0003 patch which includes running the
>regressions
>> > (vcregress check) and it passes.  Will look into it tomorrow once
>again
>and
>> > share if I find anything wrong with it, but feel to proceed if you
>want.
>>
>> Thanks for the testing thus far! Let's see what the buildfarm has to
>> say.
>>
>
>Won't the new code needs to ensure that ResetEvent(latchevent) should
>get
>called in case WaitForMultipleObjects() comes out when both
>pgwin32_signal_event and latchevent are signalled at the same time?

WaitForMultiple only reports the readiness of on event at a time, no?


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