System perforamance 4.x vs. 5.x and 6.x

Scott Long scottl at
Tue Apr 22 13:38:40 UTC 2008

Kostik Belousov wrote:
> On Tue, Apr 22, 2008 at 02:08:18PM +0200, Kris Kennaway wrote:
>> Kostik Belousov wrote:
>>> On Tue, Apr 22, 2008 at 12:31:45PM +0200, Andre Albsmeier wrote:
>>>> On Thu, 21-Feb-2008 at 14:13:22 +0200, Kostik Belousov wrote:
>>>>> On Thu, Feb 21, 2008 at 04:20:04AM -0700, Brett Bump wrote:
>>>>>> On Wed, 20 Feb 2008, Kostik Belousov wrote:
>>>>>>> I cannot reproduce it locally. With patch applied, it compiles both
>>>>>>> GENERIC and GENERIC with options QUOTA added just fine.
>>>>>>> Check for partially applied patch.
>>>>>> Thanks Kostik.  You can double check me on sizes, but it would appear 
>>>>>> that
>>>>>> all files in the patch were touched, and I double checked my sources 
>>>>>> with:
>>>>>> which 
>>>>>> are
>>>>> The patch is against RELENG_6, not against RELENG_6_2. I see no point
>>>>> in backporting it to RELENG_6_2.
>>>>> BTW, I backported two fixes, one for another deadlock with snapshots and
>>>>> quotas, another for "ffs_blkfree: block already freed" panic and followed
>>>>> up fsck: softdep inconsistency error.
>>>>> New combined patch (against RELENG_6) is at
>>>> I tried to apply this patch to recent RELENG_6 sources
>>>> but it failed at a lot of places. I think this is due to
>>>> changes to the tree after the above patch was made.
>>>> Is there any newer patch available or is it possible to make
>>>> one which applies to recent RELENG_6 sources?
>>> May be, I shall commit it finally.
>> FYI scottl@ was asking about this yesterday, and seemed interested in 
>> helping you to get it committed if necessary.
> My worry is the possible mismerge. I do prefer to commit it now, after
> some authoritative "no problem seen" message.

I'll merge it into the FreeBSD 6 tree at Yahoo, get some testing done on 
it, and then let you know how it goes.


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