From owner-freebsd-hackers  Tue Nov  7 14:58: 8 2000
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Date: Tue, 7 Nov 2000 14:58:03 -0800
From: Alfred Perlstein <bright@wintelcom.net>
To: jkh@freebsd.org
Cc: hackers@freebsd.org
Subject: Documenting sysV IPC tunables.
Message-ID: <20001107145803.G5112@fw.wintelcom.net>
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I have a patch here that I'd like to get into LINT for 4.2,
it _finally_ documents the sysV IPC tunables.

I'll also be applying this patch to NOTES for -current.

Index: LINT
===================================================================
RCS file: /home/ncvs/src/sys/i386/conf/Attic/LINT,v
retrieving revision 1.749.2.35
diff -u -u -r1.749.2.35 LINT
--- LINT	2000/10/31 23:16:07	1.749.2.35
+++ LINT	2000/11/07 22:57:59
@@ -272,9 +272,33 @@
 # Definition-style interprocess communication, in the form of shared
 # memory, semaphores, and message queues, respectively.
 #
-options 	SYSVSHM
-options 	SYSVSEM
-options 	SYSVMSG
+# System V shared memory and tunable parameters
+options 	SYSVSHM		# include support for shared memory
+options 	SHMMAXPGS=1025	# max amount of shared memory pages (4k on i386)
+options 	SHMALL=1025	# max amount of shared memory (bytes)
+options 	SHMMAX="(SHMMAXPGS*PAGE_SIZE+1)"
+				# max shared memory segment size (bytes)
+options 	SHMMIN=2	# min shared memory segment size (bytes)
+options 	SHMMNI=33	# max number of shared memory identifiers
+options 	SHMSEG=9	# max shared memory segments per process
+
+# System V semaphores and tunable parameters
+options 	SYSVSEM		# include support for semaphores
+options 	SEMMAP=31	# amount of entries in semaphore map
+options 	SEMMNI=11	# number of semaphore identifiers in the system
+options 	SEMMNS=61	# number of semaphores in the system
+options 	SEMMNU=31	# number of undo structures in the system
+options 	SEMMSL=61	# max number of semaphores per id
+options 	SEMOPM=101	# max number of operations per semop call
+options 	SEMUME=11	# max number of undo entries per process
+
+# System V message queues and tunable parameters
+options 	SYSVMSG		# include support for message queues
+options 	MSGMNB=2049	# max characters per message
+options 	MSGMNI=41	# max number of message queue identifiers
+options 	MSGSEG=2049	# max number of message segments in the system
+options 	MSGSSZ=16	# size of a message segment MUST be power of 2
+options 	MSGTQL=41	# max amount of messages in the system
 
 
 #####################################################################
@@ -2415,11 +2439,6 @@
 options 	KEY
 options 	LOCKF_DEBUG
 options 	LOUTB
-options 	MSGMNB=2049
-options 	MSGMNI=41
-options 	MSGSEG=2049
-options 	MSGSSZ=16
-options 	MSGTQL=41
 options 	NBUF=512
 options 	NETATALKDEBUG
 options 	NMBCLUSTERS=1024
@@ -2435,19 +2454,6 @@
 options 	SCSI_NCR_MYADDR=7
 options 	SC_DEBUG_LEVEL
 options 	SC_RENDER_DEBUG
-options 	SEMMAP=31
-options 	SEMMNI=11
-options 	SEMMNS=61
-options 	SEMMNU=31
-options 	SEMMSL=61
-options 	SEMOPM=101
-options 	SEMUME=11
-options 	SHMALL=1025
-options 	SHMMAX="(SHMMAXPGS*PAGE_SIZE+1)"
-options 	SHMMAXPGS=1025
-options 	SHMMIN=2
-options 	SHMMNI=33
-options 	SHMSEG=9
 options 	SHOW_BUSYBUFS	# List buffers that prevent root unmount
 options 	SIMPLELOCK_DEBUG
 options 	SI_DEBUG

-- 
-Alfred Perlstein - [bright@wintelcom.net|alfred@freebsd.org]
"I have the heart of a child; I keep it in a jar on my desk."


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