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- Newsgroups: comp.unix.questions
- Path: sparky!uunet!mdisea!uw-coco!nwnexus!Celestial.COM!bill
- From: bill@Celestial.COM (Bill Campbell)
- Subject: Re: SCO TCPIP >9 LOGINS AGAIN
- Organization: Celestial Software, Mercer Island, WA
- Date: Tue, 17 Nov 1992 02:00:52 GMT
- Message-ID: <1992Nov17.020052.28146@Celestial.COM>
- References: <9461.63.uupcb@cccbbs.UUCP>
- Lines: 79
-
- In <9461.63.uupcb@cccbbs.UUCP> doug.pavey@cccbbs.UUCP (Doug Pavey) writes:
-
- >Well, I read Aris' and Barry's messages about what is involved in
- >getting more than 9 tty's to login. ttyp00 -ttyp08 work fine, ttyp09
- >will login, but hang TCP.
-
- Xenix has a max of 32 ptys and SCO UNIX a max around 254.
-
- >How does one debug streams limits problems - determine how many are in
- >use, or how many one should set up if the user may be using as many as
- >10 processes per login (Progress Database is wonderful). All users are
- >using TCP via 3 8 port Terminal servers. I can get the login messages on
- >all ports, until the user actually signs in, we don't seem to have
- >problems. Seems like streams may be the culprit. How to fix???
-
- You don't say in this post whether you're running Xenix or UNIX
- and there are different tools to determine problems with streams
- in each. Xenix comes with a program 'sw', UNIX comes with crash, and
- there are some freely distributed monitor programs such as u386mon
- available from various ftp sites.
-
- Xenix sw displays:
-
- Pause=1 Calls=74 Host=camco1
-
- Resource Cnt Use Total Max Fail
- stream: 128 40 4020 53 0
- queue: 256 83 8074 111 0
- mblock:1152 7818508524 636 0
- dblk totals:1152 7813966687 543 4469
-
- Mem Size Cnt Med Low Use Total Max Fail
- 1 4 256 230 204 0 893844 155 0
- 2 16 128 115 102 2 449445 102 889
- 8 32 256 230 204 6 2644776 207 3339
- 16 64 256 230 204 5 8602774 147 0
- 16 128 128 115 102 50 386387 103 18
- 12 256 48 43 38 15 220139 37 0
- 4 512 8 7 6 0 102435 7 223
- 32 1024 32 28 25 0 50083 8 0
- 64 2048 32 28 25 0 584718 13 0
- 32 4096 8 7 6 0 32086 5 0
- 0 8192 0 0 0 0 0 0 0
-
- Buffers (used/total) = 11/187 Kbytes
-
- This is from a system that has been running for a while now. Uptime gives:
- camco1:ttyp02 /usr/local/bin # uptime
- 5:53pm up 20 days, 55 mins, 12 users, load average: 1.19, 1.04, 1.02
-
- You would probably want to use crash and it's strstat command on a UNIX
- system which gives similar information. A typical crash display is:
- beeson1:ttyp8:/onager/etc > crash
- dumpfile = /dev/mem, namelist = /unix, outfile = stdout
- > strstat
- ITEM CONFIG ALLOC FREE TOTAL MAX FAIL
- streams 256 158 98 821 171 0
- queues 1280 704 576 2306 786 0
- message blocks 2825 309 2516 11357083 705 0
- data block totals 2260 309 1950 9675047 669 63
- data block size 4 384 51 333 66265 364 63
- data block size 16 384 8 376 39861 65 0
- data block size 64 512 24 488 4950469 68 0
- data block size 128 448 157 290 2974970 392 0
- data block size 256 220 33 187 632454 107 0
- data block size 512 136 36 100 495575 46 0
- data block size 1024 52 0 52 84628 44 0
- data block size 2048 104 0 104 430474 25 0
- data block size 4096 20 0 20 351 12 0
-
- Count of scheduled queues: 0
- >
-
- Bill
- --
- INTERNET: bill@Celestial.COM Bill Campbell; Celestial Software
- UUCP: ...!thebes!camco!bill 6641 East Mercer Way
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