2.10BSD - Revision history

Bqt at 16:46, 27 October 2022

2022-10-27T16:46:23Z

Jnc: /* External links */ - docs at TUHS

2022-05-13T17:08:00Z

‎External links: - docs at TUHS

Jnc: +cat, +links

2018-12-11T02:44:13Z

+cat, +links

Jnc: Proably good enough

2016-11-12T13:15:48Z

Proably good enough

New page

'''2.10BSD''' is a release of [[Unix]] for the [[PDP-11]] by a consortium of [[CSRG]] and the [[USENIX Association]]. It ran on all PDP-11 models with [[PDP-11 Memory Management|memory management]]. It was basically the same as [[4.3BSD]] for the [[VAX]], to the point where there were no separate manuals, users were expected to just use the 4.3BSD ones.

Some of the things that were added were:

* Conversion of the entire system to a 4.3BSD structure, including
** 4.3BSD system calls
* inode, [[main memory]], and swap caching
* 22-bit [[QBUS]] support
* [[RAM]] disk
* [[MSCP]] device driver ([[UDA50]], [[KLESI]], etc)
* 4.3BSD user software (libraries and applications)

As a result of the efficiency-related changes, it was the fastest PDP-11 Unix. As an example, in a [[PDP-11/44]] with 4M of memory being in a student environment, it essentially never swapped, and only rarely did programs leave main memory.

An another benchmark, [[ULTRIX-11]], V3.0, on a [[PDP-11/73]] took 1.1 system seconds to start [[vi]]. [[2.9BSD]] took approximately .9 system seconds (the reduction probably being attributable 2.9BSD's use of [[vfork]]). Once 2.10BSD had the vi image in its main memory cache, it took only .2 system seconds to start it.

It did not support networking, but almost all the internal work to do so had been done (the later [[2.11BSD]], released shortly thereafter, did add networking support.)

← Older revision		Revision as of 16:46, 27 October 2022
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	** [https://minnie.tuhs.org/cgi-bin/utree.pl?file=2.11BSD/doc/2.10/announce.ms Second Distribution of Berkeley PDP-11 Software for UNIX] - announcement		** [https://minnie.tuhs.org/cgi-bin/utree.pl?file=2.11BSD/doc/2.10/announce.ms Second Distribution of Berkeley PDP-11 Software for UNIX] - announcement

		+	[[Category: PDP-11 Operating Systems]]
		+	[[Category: Non-DEC Operating Systems]]
	[[Category: CSRG BSD]]		[[Category: CSRG BSD]]
		+	[[Category: Unix-based OS's]]

← Older revision		Revision as of 17:08, 13 May 2022
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	It did not support networking, but almost all the internal work to do so had been done (the later [[2.11BSD]], released shortly thereafter, did add networking support.)		It did not support networking, but almost all the internal work to do so had been done (the later [[2.11BSD]], released shortly thereafter, did add networking support.)
		+
		+	==External links==
		+
		+	* [https://minnie.tuhs.org/cgi-bin/utree.pl?file=2.11BSD/doc/2.10 2.10BSD] - 2.10BSD documentation at [[The Unix Heritage Society\|TUHS]]
		+	** [https://minnie.tuhs.org/cgi-bin/utree.pl?file=2.11BSD/doc/2.10/announce.ms Second Distribution of Berkeley PDP-11 Software for UNIX] - announcement

	[[Category: CSRG BSD]]		[[Category: CSRG BSD]]

@@ Line 1: / Line 1: @@
-'''2.10BSD''' is a release of [[Unix]] for the [[PDP-11]] by a consortium of [[CSRG]] and the [[USENIX Association]]. It ran on all PDP-11 models with [[PDP-11 Memory Management|memory management]]. It was basically the same as [[4.3BSD]] for the [[VAX]], to the point where there were no separate manuals, users were expected to just use the 4.3BSD ones.
+'''2.10BSD''' is a release of [[UNIX]] for the [[PDP-11]] by a consortium of [[CSRG]] and the [[USENIX Association]]. It ran on all PDP-11 models with [[PDP-11 Memory Management|memory management]]. It was basically the same as [[4.3BSD]] for the [[VAX]], to the point where there were no separate manuals, users were expected to just use the 4.3BSD ones.
 Some of the things that were added were:
@@ Line 5: / Line 5: @@
 * Conversion of the entire system to a 4.3BSD structure, including
 ** 4.3BSD system calls
-* inode, [[main memory]], and swap caching
+* inode, [[main memory]], and [[swapping|swap]] [[cache|caching]]
 * 22-bit [[QBUS]] support
 * [[RAM]] disk
@@ Line 16: / Line 16: @@
 It did not support networking, but almost all the internal work to do so had been done (the later [[2.11BSD]], released shortly thereafter, did add networking support.)