https://gunkies.org/index.php?action=history&feed=atom&title=Talk%3APWB%2FUNIX 2026-10-08T10:09:36Z Revision history for this page on the wiki MediaWiki 1.43.9 https://gunkies.org/w/index.php?title=Talk:PWB/UNIX&diff=28834&oldid=prev 2023-03-08T10:57:48Z

<p><span class="autocomment">&#039;Huge&#039; file support removed: </span> new section</p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 10:57, 8 March 2023</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l7">Line 7:</td> <td colspan="2" class="diff-lineno">Line 7:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[User:Jnc|Jnc]] ([[User talk:Jnc|talk]]) 17:28, 7 March 2023 (CET)</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[User:Jnc|Jnc]] ([[User talk:Jnc|talk]]) 17:28, 7 March 2023 (CET)</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">== 'Huge' file support removed ==</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">In PWB1, support for 'huge' files appears to have been removed. If one compares bmap() in PWB1'S [https://minnie.tuhs.org/cgi-bin/utree.pl?file=PWB1/sys/sys/os/subr.c subr.c] with [https://minnie.tuhs.org/cgi-bin/utree.pl?file=V6/usr/sys/ken/subr.c V6]'s, the "'huge' fetch of double indirect block" code is gone. I guess PWB didn't need very large (&gt; 8*256*512 = 1,048,576 bytes) files? I'm not sure what the ''benefits'' of removing it were, though - unless PWB was generating lots of files of between 7*256*512 and 8*256*512 bytes in length, and they wanted to avoid the overhead of the double-indirect block? [[User:Jnc|Jnc]] ([[User talk:Jnc|talk]]) 11:57, 8 March 2023 (CET)</ins></div></td></tr> <!-- diff cache key mediawiki-wiki_:diff:1.41:old-28827:rev-28834:php=table --> </table>

Jnc https://gunkies.org/w/index.php?title=Talk:PWB/UNIX&diff=28827&oldid=prev 2023-03-07T16:29:21Z

<p>Some personal recollections</p> <p><b>New page</b></p><div>==Some personal recollections==<br /> <br /> From Guy Harris from [https://groups.google.com/g/net.unix/c/-H9x36DMOBQ/m/4mcL76lKbmMJ?pli=1 here] (Jan 11, 1984):<br /> <br /> : &#039;&#039;UNIX/TS was USG UNIX and PWD UNIX combined.&#039;&#039;<br /> : &#039;&#039;And was derived from a version of UNIX that was mostly Research V7, although it was, I believe, slightly earlier than the released V7 (it had a V6-ish) terminal driver, for instance) - the original USG UNIX and PWB/UNIX were derived from V6 or from V6es later than the released V6 - a set of &quot;50 changes&quot; that would turn V6 into what was running at Research at the time when the changes were sent out was done by Ken Thompson, and there was a Phototypesetter, Version 7&quot; distribution that contained the &quot;modern&quot; nroff/troff/eqn/tbl, the &quot;modern&quot; C compiler with &quot;long&quot;, &quot;typedef&quot;, etc., the &quot;modern&quot; linker and archiver, and the Standard I/O library. Most of the &quot;50 changes&quot; and &quot;Phototypesetter, Version 7&quot; stuff was in PWB/UNIX 1.0.<br /> <br /> [[User:Jnc|Jnc]] ([[User talk:Jnc|talk]]) 17:28, 7 March 2023 (CET)</div>

Jnc