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- Path: sparky!uunet!auspex-gw!guy
- From: guy@Auspex.COM (Guy Harris)
- Newsgroups: comp.sys.sun.misc
- Subject: Re: Solaris 2.0 slower than 1.0
- Message-ID: <13824@auspex-gw.auspex.com>
- Date: 30 Jul 92 02:04:07 GMT
- References: <1992Jul15.194938.1305@cirrus.com> <KESSLER.92Jul27190226@sluggo.Eng.Sun.COM> <1992Jul29.184428.13715@techbook.com>
- Sender: news@auspex-gw.auspex.com
- Organization: Auspex Systems, Santa Clara
- Lines: 28
- Nntp-Posting-Host: bootme.auspex.com
-
- >It's possible
- >that the SVR4.3 implementation of the Berkeley fast file system has
- >some significant performance (and reliability) problems. If Sun ported
- >the same code, they might have inherited the same problems.
-
- Do you really mean "SVR4.3"? "SVR4.3" isn't out yet, as far as I know;
- SVR4.2 is the last one I heard announced. Is "SVR4.3" the "Enhanced
- Security/Multiprocessing" (ES/MP)" release?
-
- Or are you referring to the UFS in early SVR4.0-vintage releases? I've
- seen occasional notes that those early versions did have a buggy UFS
- implementation.
-
- If it's the early SVR4.0-vintage release, I've no idea how it managed to
- get those problems; it started out as an early-stages SunOS 4.1 UFS
- implementation (no FFFS), with some tweaks for the slightly-different
- SVR4 VFS mechanism (minor cleanups).
-
- I suspect Sun's version differs more from said early-stages 4.1
- implementation than the vanilla SVR4.0 one does; AT&T/USL may or may not
- have picked up the Tahoe stuff (then again, as of SVR4.2, the BSD file
- system may be on the way out, in favor of the Veritas one that is, I
- think, the standard file system in SVR4.2 - yes, it has long file
- names), and Sun presumably multi-threaded the file system for MP support
- (AT&T probably didn't do that until the first MP SVR4 release).
-
- If it's more like SVR4 ES/MP, I don't think Sun's picked that release
- up, at least not yet.
-