Re: FreeBSD 6 is coming too fast

From: /dev/null <null_at_dnswatch.com>
Date: Mon, 25 Apr 2005 03:57:41 -0700 (PDT)
Same System, same Applications. With the exception of Xorg in place of
XFree86.

-Chris

> performance on many systems is very hard to gauge.  I think this is
> something mostly left up to the individual, as hardware-software
> combinations truly make up the performance of a system.
>
> On Sun, 24 Apr 2005, Jon Noack wrote:
>
>> On 04/24/05 18:29, /dev/null wrote:
>>> <snip>
>>>
>>> needed. All in all life on 5.x and the "upgrade" wasn't too bad. I will
>>> say that there is ONE issue that I have found and have not yet solved.
>>> It
>>> now takes at least 2 times longer to build any of the ports.
>>> Performance
>>> in other areas seems to be lagging as well. I have since upgraded one
>>> of
>>> the 2 servers to 5.4-RC2 and have been chasing 5.x ever since hoping to
>>> find the performance issues will dissappear.
>>
>> If you are running a UP system, it is expected that 4.x will outperform
>> 5.x
>> in many situations due to the focus on SMP.  Optimizing synchronization
>> to
>> increase performance is one of the main goals for 6.x (see the recent
>> work on
>> critical sections, for example).  This will allow us to scale well on
>> SMP
>> systems without pessimizing performance on UP systems.
>>
>> Another point to remember is that compilation times with GCC 3.4
>> (default for
>> recent 5.x) are much longer than those with 2.95 (default for 4.x),
>> especially at higher optimization levels.  This is one of the main
>> reasons
>> why it takes longer to compile a port.
>>
>> That said, in what specific areas are you seeing performance
>> regressions?
>>
>> Jon
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>>
>


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Received on Mon Apr 25 2005 - 08:57:43 UTC

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