From 7f9e0764e40a5987ba1172a2f26fce17ab81279d Mon Sep 17 00:00:00 2001
From: Thomas Schwinge <tschwinge@gnu.org>
Date: Tue, 7 Jul 2009 22:48:47 +0200
Subject: Issues with the time command(s).

---
 open_issues/time.mdwn | 55 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 open_issues/time.mdwn

(limited to 'open_issues')

diff --git a/open_issues/time.mdwn b/open_issues/time.mdwn
new file mode 100644
index 00000000..eda5b635
--- /dev/null
+++ b/open_issues/time.mdwn
@@ -0,0 +1,55 @@
+[[!meta copyright="Copyright © 2009 Free Software Foundation, Inc."]]
+
+[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable
+id="license" text="Permission is granted to copy, distribute and/or modify this
+document under the terms of the GNU Free Documentation License, Version 1.2 or
+any later version published by the Free Software Foundation; with no Invariant
+Sections, no Front-Cover Texts, and no Back-Cover Texts.  A copy of the license
+is included in the section entitled [[GNU Free Documentation
+License|/fdl]]."]]"""]]
+
+[[!tag open_issue_porting]]
+
+Neither the `time` executable from the GNU time package work completely
+correctly, nor does the GNU Bash built-in one.
+
+    tschwinge@flubber:~ $ \time sleep 2
+    0.00user 0.00system 9:38:00elapsed 0%CPU (0avgtext+0avgdata 0maxresident)k
+    0inputs+0outputs (0major+0minor)pagefaults 0swaps
+    tschwinge@flubber:~ $ \time sleep 4
+    0.00user 0.00system 18:50:25elapsed 0%CPU (0avgtext+0avgdata 0maxresident)k
+    0inputs+0outputs (0major+0minor)pagefaults 0swaps
+    tschwinge@flubber:~ $ \time sleep 6
+    0.00user 0.00system 28:00:53elapsed 0%CPU (0avgtext+0avgdata 0maxresident)k
+    0inputs+0outputs (0major+0minor)pagefaults 0swaps
+    tschwinge@flubber:~ $ time sleep 2
+    
+    real    0m2.093s
+    user    0m0.000s
+    sys     0m0.011s
+    tschwinge@flubber:~ $ time sleep 4
+    
+    real    0m4.083s
+    user    0m0.000s
+    sys     0m0.010s
+    tschwinge@flubber:~ $ time sleep 6
+    
+    real    0m6.164s
+    user    0m0.000s
+    sys     0m0.010s
+
+GNU time's *elapsed* value is off by some factor.
+
+    $ \time factor 1111111111111111111
+    1111111111111111111: 1111111111111111111
+    0.00user 0.00system 52:39:24elapsed 0%CPU (0avgtext+0avgdata 0maxresident)k
+    0inputs+0outputs (0major+0minor)pagefaults 0swaps
+    $ time factor 1111111111111111111
+    1111111111111111111: 1111111111111111111
+    
+    real    0m11.424s
+    user    0m0.000s
+    sys     0m0.010s
+
+As above; also here all the running time should be attriuted to *user* time.
+This is probably a [[!taglink open_issue_gnumach]].
-- 
cgit v1.2.3