Date: Thu, 22 Oct 1998 09:03:17 +0800 From: Peter Wemm <peter@netplex.com.au> To: Peter Jeremy <peter.jeremy@auss2.alcatel.com.au> Cc: hackers@FreeBSD.ORG Subject: Re: FS Behaviour with small frags Message-ID: <199810220103.JAA19302@spinner.netplex.com.au> In-Reply-To: Your message of "Thu, 22 Oct 1998 09:36:35 %2B1000." <98Oct22.093607est.40343@border.alcanet.com.au>
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Peter Jeremy wrote: > I'm looking at using a 4096/512 filesystem (instead of the standard > 8192/1024) for news spool. (Based on an analysis of my current news > spool, this will save about 10% of the space). > > Are there any down-sides to using 4096/512 instead of 8192/1024? For > the same disk and cylinder group organisation, will a 4096/512 FS be > slower or use more system resources than an 8192/1024 FS (given lots > of small files)? I threw a lot of effort at this some time ago, but couldn't make it work reliably under 2.2.early-something at the time. It was regularly corrupting the freelists, having dup frees, etc. Switching back to 8192/1024 resolved all problems and the machine ran for months at a time. I was tried both 4096/512 and 4096/1024, including several newfs's because the filesystem was so badly damaged that fsck could not fix it. This is over a year out of date though, and closer to 2 years. Cheers, -Peter To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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