cpcahil@virtech.uucp (Conor P. Cahill) (03/11/91)
6c6 < Supersedes: <1990Nov05.012005.18284@virtech.uucp> --- > Supersedes: <1991Feb03.153747.25359@virtech.uucp> 20c20 < Last Modified: $Id: freq.ques,v 1.6 91/02/03 10:30:15 cpcahil Exp $ --- > Last Modified: $Id: freq.ques,v 1.7 91/03/10 20:21:40 cpcahil Exp $ 50a51,52 > 26. What dos-under-unix product will work with ESIX? > 27. How do I correctly configure the various STREAMS parameters? 95,97c97,110 < However, System V Release 4 (SVR4) binaries will not run on System V < Release * (where * is less than 4.0) systems. < --- > Contact information for the various OS manufacturers: > > PRODUCT VENDOR Phone contact (sales) > ---------------------- ---------------------- --------------------- > AT&T UNIX AT&T ??? > DELL UNIX (SVR3&4) DELL Computer Corp 800-426-5150 > ESIX Everex 415-683-2068 > ISC UNIX (SVR3) Interactive Systems ??? > Mach Mt Xinu ??? > Microport UNIX (SVR3&4) Microport ??? > SCO UNIX & Xenix Santa Cruz Operation 800-726-8649 > UHC UNIX (SVR4) UHC 713-782-2700 > > 139c152 < the 386 as one of it's target environments, but since it includes --- > the 386 as one of its target environments, but since it includes 147c160,161 < somewhat limited. --- > somewhat limited and they (Mt Xinu) see this as a developers > product, not an end-user product. 250,260c264,267 < Bell Tech (now Intell) < BT has three serial port solutions: ICC, ACE, and HUB. < The ICC card looses data at incomming speeds > 19200. It < locks up about once or twice a week, but is easily restarted < since BT provides a program that can reset the card without < rebooting the system. For normal terminal operation the < card is satisfactory. Price was around $1500 when I bought < it a couple of years ago. < < The ACE card is reported to be "bad beyond belief" with < hanging problems caused by timing problems on the card. --- > Bell Tech (now Intel) > BT had three serial port solutions: ICC, ACE, and HUB. > Intel is no longer selling these cards (they stopped > taking orders on 1 Jan 91). 262,265d268 < The HUB is a non-intelligent card that is "rock solid" and < will provide 6 ports. However, since it is non-intelligent < it will place a load on the system. < 328c331,332 < venor. --- > venor. A second option is to obtain GROFF (which is free and > available at your local GNU repository). 336,337c340,341 < Eroff $795 < SoftQuad Publishing ??? --- > Eroff $795 (415-964-2200) > SoftQuad Publishing $995 (800-387-2777) 508c512,518 < up to 4 partitions for use as file systems. This can be bypassed --- > up to 4 partitions for use as file systems. > > For ISC UNIX (version 2.2 and above), the installation software > will allow you to specify a full range of partitions. SCO UNIX > has a similar capability in its divvy software. > > For those running 386/ix the problem can be bypassed 603c613 < and it's size. --- > and its size. 652a663,680 > o. Make a lost and found directory and create some empty slots > (for fsck to use when fixing the file system) for each partition. > I usually run something like the following: > > for i in a b c d > do > mkdir /$i/lost+found > cd /$i/lost+found > for j in 1 2 3 4 5 6 7 8 9 > do > for k in 1 2 3 4 5 6 7 8 9 > do > > $j$k > done > done > rm /$i/lost+found/[1-9][1-9] > done > 708c736,741 < Yes, but the slowdown is really impressive. Don't do it. --- > Yes, but the slowdown is really significant. (for two > reasons: 1. each 32 bit word access will require two bus > cycles to obtain since the bus is only 16 bits wide and 2) the > bus usually only runs at 8MHZ compared to at least 16MHZ for > the standard memory bus. Don't do it. > 756a790 > 767,770c801,854 < At least one of the System V R3 releases (namely Microport) included < a ksh. The base port of System V R4 includes the ksh as one of its < standard shell, so if you wait a bit, it will be part of the base < system. --- > Both Microport and SCO UNIX (starting with 3.2v2) ship a ksh with > the standard OS. The base port of System V R4 includes the ksh as > one of its standard shell, so if you wait a bit, it will be part > of the base system. > > 26. What dos-under-unix product will work with ESIX? > > ESIX does not include a dos-under-unix product. However, ISC's > release of VPIX can be installed an run under ESIX. > > 27. How do I correctly configure the various STREAMS parameters? > > The "STREAMS" subsystem provides a mechanism for inter-process > communications both within the same system and across various > networks between different systems. In the standard OS, pieces like > X-windows, TCP/IP, NFS, FTP all use STREAMS for communication > purposes. That is why it is important that you correctly configure > the tunable parameters dealing with STREAMS. > > Those parameters include: data blocks, queues, and streams. The > System administration guide will explain what these parameters are, > but it doesn't explain how to select good values for these parameters. > > To configure these parameters you need to let you system run for > a while, then run "netstat -m". The output will look similar to > the following: > > alloc inuse total max fail > streams: 512 75 639 76 0 > queues: 2048 422 3722 428 0 > mblocks: 4440 243 2277566 1158 0 > dblocks: 3552 243 1975582 1032 0 > dblock class: > 0 ( 4) 512 0 47624 4 0 > 1 ( 16) 1024 34 243812 241 0 > 2 ( 64) 1024 22 1503769 679 0 > 3 ( 128) 512 179 73310 194 0 > 4 ( 256) 256 0 24425 4 0 > 5 ( 512) 128 8 50889 15 0 > 6 (1024) 32 0 30378 12 0 > 7 (2048) 32 0 1373 17 0 > 8 (4096) 32 0 2 1 0 > > In looking at this output, the key factors are alloc, max, and > fail. The ideal is to keep the alloc numbers approx 20% higher > than your max (which will keep fails at zero). Of course, the > numbers represented under max an fail columns are only since > the last time you rebooted, so you should keep track of the > highest values you have seen. > > Once you determine the correct values for your system, you can > use idtune or kconfig to change the parameters (or edit the > /etc/conf/cf.d/stune file), rebuild the kernel and see how > things improve. -- Conor P. Cahill (703)430-9247 Virtual Technologies, Inc. uunet!virtech!cpcahil 46030 Manekin Plaza, Suite 160 Sterling, VA 22170