Date: Thu, 21 Sep 2017 18:51:45 +0200 From: Andreas Longwitz <longwitz@incore.de> To: gljennjohn@gmail.com, freebsd-fs@freebsd.org Subject: Re: fsync: giving up on dirty on ufs partitions running vfs_write_suspend() Message-ID: <59C3EE21.1010401@incore.de> In-Reply-To: <20170921125858.64ffe077@ernst.home> References: <201709110519.v8B5JVmf060773@chez.mckusick.com> <59BD0EAC.8030206@incore.de> <20170916183117.GF78693@kib.kiev.ua> <59C37F46.80509@incore.de> <20170921125858.64ffe077@ernst.home>
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Gary Jennejohn schrieb:
>> So the spent time in vop_stdfsync() is 0,24 sec in the worst case I
>> found using DELAY with 1 ms. I would prefer this solution. My first
>> appoach (simple bumping maxres from 1000 to 100000) is also ok, but max
>> spend time will be raise up to 0,5 sec. Perhaps you like something like
>>
>> if( maxretry < 1000 && maxretry % 10 = 0)
> ^ ==
>> DELAY(waitns);
>>
>
> The argument to DELAY is in micro-seconds.
>
Thanks for your hint.
Correct is
waitns = 1000;
if( maxretry < 1000 && maxretry % 10 == 0)
DELAY(waitns);
Andreas Longwitz
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