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On Mon, 26 Jun 2006, 张�~_�武 wrote:
在 2006-06-25日的 17:18 +0200，Etaoin Shrdlu写道：
On Sunday 25 June 2006 06:01, Zhang Weiwu wrote:
Thank you for the answer. Just another smaller question: from pruely a
user's view (who simply wish to use it, rather then from developer view
who might gain knowledge and fun doing it), is it worthy to try it
(64bit sparc)?
The original idea is the system as a print server is too slow (capable
of doing fast dithering for the inkjet printer, but not fast enough to
do real-time even-tone dithering to server the printer, usually cause
printer to wait for server), a rough gain of 20% to 30% CPU power, by my
guessing of observing top(1), should be enough for the printer.
Dithering is always a CPU intensive job and we do a lot of printing.
I observed kernel is taking only a very small percentage of CPU usage,
if I try hours to get 64-bit kernel running but only obtain 5% speed
gain, that may not be worth.
I think there is a miscommunication here. On sparc64 you are running the
kernel on 64-bit mode. It's user programs which run only in 32-bit mode
(without a fair amount of effort, that is). Since 32-bit user mode is
FASTER than 64-bit user mode, for your application, you don't want 64-bit
user mode in any case.
Or should I try Solaris 10? Should Solaris
provide better performance in this very case? (how much performance gain
might happen? 10%? 20%?) I don't need a very close estimation, just if
someone can give me a very rough estimation is very helpful, for I am
not techincally able to do the decision:)
If switch to Solaris for performance (no offensive, I am a 5 year's
hardcore Linux user), generally speaking, is Solaris very compatible
with PCI cards like NEC USB controller, Promise IDE controller and
ethernet cards?
And thank you a lot for you time,
Etaoin Shrdlu
I can't comment meaningfully on your other questions.
Regards,
Ferris
- --
Ferris McCormick (P44646, MI) <[EMAIL PROTECTED]>
Developer, Gentoo Linux (Devrel, Sparc)
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