Shortage of the current implementation of Soft Updates
The current FreeBSD Soft Updates poses to a performance peanlity when there’re plenty of i-nodes and this is very common case in badly-designed systems, however, I think this should be solved.
阅读全文…www.delphij.net receives tenfold of increase in uptime by migrating to FreeBSDChina's machine
The migration apparantly gots its result, 30 times of increase here. No old hardware any more!!
参与评论Finally moved www.delphij.net and several my websites out
I don’t want to do this, but I can not bear beastie.frontfree.net any more. It continously generates troubles for me, and in addition, the configuration is too poor for me, not only compared to the other servers I moderate, but also to the modern computers.
阅读全文…A watchdog for beastie.frontfree.net
I hate them, really, really hate them, they are abusing the machine and I have to spend much time on dealing with the mess they generated.
阅读全文…lock problem triggered by umount
I have just tried to umount /usr on my test box in order to get all outstanding writes to be sync’ed to disk (as Kirk McKusick said, the umount system call will do true sync of a file system).
阅读全文…Profile-based compile optimization
junsu has pointed out that gcc has the ablity to do profile, record the data and optimize the generated code according to the data. The nearest compiler guru I can visit is Prof. Husheng LIAO (sorry, the link here is not available to the Internet at the time writing, but this is hopefully to be changed soon) who recently concentrate his research in optimization for the Java Language Compiling process.
Further information will be available here soon.
参与评论beastie.frontfree.net's apache problem addressed
With help from clement@, I have finally addressed the problem I am encounting was caused by a mix of libkse(libpthread) and its older version.
阅读全文…PID allocator bench marked
das@ [David Schultz] has done some benchmark of the different PID allocators recently being discussed on hackers@, and the result is available here.
阅读全文…Planning a personalized release of FreeBSD 5.2-CURRENT
As the FreeBSD 5.2.1 approaching its release day, I begun to think about the possiblity of having a personal customized release.
It’s not too hard for me, and also valuable because the FreeBSD Release Engineering Team has restricted the changes in a point release to be mainly “critical bugfixes only”.
阅读全文…Statistics of viruses caught by Frontfree Mail System yesterday
Gibe is still the first place, and MyDoom(here, it was called Worm.SCO.A) drastically dropped down.
beastie# bzcat maillog.0.bz2 | grep INFECT | awk ‘{print $8;}’ | sort | uniq -c | sort -rn
181 (Worm.Gibe.F),
86 (Worm.SCO.A),
2 (Worm.Dumaru.Y),
1 (Worm.Sobig.F),