I/O and Memory accounting...

[Guillaume Thouvenin]

Hello,

  In the ChangeLog-2.6.11 file I read that the enhanced I/O accounting
data patch and the enhanced memory accounting data collection patch were
added. It's cool but I don't see how this stuff is used because
information is never dump in a file or send to an accounting application
(or I miss something). 
 
  Maybe we should update the ac_io in the "struct acct"? Thus, values
will be dump in the accounting file. Maybe it could be something like:

--- acct.c.orig	2005-03-09 14:17:07.000000000 +0100
+++ acct.c	2005-03-09 14:18:20.000000000 +0100
@@ -477,8 +477,8 @@ static void do_acct_process(long exitcod
 	}
 	vsize = vsize / 1024;
 	ac.ac_mem = encode_comp_t(vsize);
-	ac.ac_io = encode_comp_t(0 /* current->io_usage */);	/* %% */
-	ac.ac_rw = encode_comp_t(ac.ac_io / 1024);
+	ac.ac_io = encode_comp_t(current->rchar + current->wchar);
+	ac.ac_rw = encode_comp_t(0);
 	ac.ac_minflt = encode_comp_t(current->signal->min_flt +
 				     current->group_leader->min_flt);
 	ac.ac_majflt = encode_comp_t(current->signal->maj_flt +


For memory and read/write syscall we may add new fields. 

Best regards,
Guillaume

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