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[wwwdocs] Mention LTO link-time issue fixed in gcc 8.2

Message ID 20180719094728.GA53182@kam.mff.cuni.cz
State New
Headers show
Series [wwwdocs] Mention LTO link-time issue fixed in gcc 8.2 | expand

Commit Message

Jan Hubicka July 19, 2018, 9:47 a.m. UTC 
Hi,
since we now mention the problem with Intel tuning, I tought we also may mention
the LTO link-time issue that was fixed.  It was mentioned by several folks at
the phoronix forum. (Basicaly sometimes the partition size has overlfown which
made partitioner to put every symbol into separate parition causing fork bomb
while streaming and overall very slow compile times).

Honza

Comments

Gerald Pfeifer July 21, 2018, 7:51 p.m. UTC | #1 
On Thu, 19 Jul 2018, Jan Hubicka wrote:
> since we now mention the problem with Intel tuning, I tought we also may 
> mention the LTO link-time issue that was fixed.  It was mentioned by 
> several folks at the phoronix forum. (Basicaly sometimes the partition 
> size has overlfown which made partitioner to put every symbol into 
> separate parition causing fork bomb while streaming and overall very 
> slow compile times).

Thanks, Jan, this looks fine to me.

Gerald
Gerald Pfeifer July 22, 2018, 10:24 a.m. UTC | #2 
On Sat, 21 Jul 2018, Gerald Pfeifer wrote:
> Thanks, Jan, this looks fine to me.

Oops, I missed </h4> closing an <h3>; just followed up on your
commit to fix that.

Gerald

Index: changes.html
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-8/changes.html,v
retrieving revision 1.90
diff -u -r1.90 changes.html
--- changes.html	21 Jul 2018 19:55:10 -0000	1.90
+++ changes.html	22 Jul 2018 08:25:46 -0000
@@ -1321,7 +1321,7 @@
 complete (that is, it is possible that some PRs that have been fixed
 are not listed here).</p>
 
-<h3>General Improvements</h4>
+<h3>General Improvements</h3>
   <ul>
     <li>Fixed LTO link-time performance problems caused by an overflow
 	in the partitioning algorithm while building large binaries.</li>
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Patch

Index: changes.html
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-8/changes.html,v
retrieving revision 1.89
diff -u -r1.89 changes.html
--- changes.html	15 Jul 2018 12:57:34 -0000	1.89
+++ changes.html	19 Jul 2018 09:45:27 -0000
@@ -1321,6 +1321,12 @@ 
 complete (that is, it is possible that some PRs that have been fixed
 are not listed here).</p>
 
+<h3>General Improvements</h4>
+  <ul>
+    <li>Fixed LTO link-time performance problems caused by an overflow
+	in the partitioning algorithm while building large binaries.</li>
+  </ul>
+
 <h3>Target Specific Changes</h3>
 
 <h4>IA-32/x86-64</h4>