On Thu, 26 May 2011 09:40:31 +0200, yy wrote:
2011/5/26 erik quanstrom <quans...@quanstro.net>:
9vx uses plan9.ini? last i checked, that assumption was false.
That depends where you checked. Ron's version (or mine, they are the
same now) has some support for plan9.ini files with the -f flag, as
is
documented in the man page:
http://bytebucket.org/yiyus/vx32/wiki/9vx.html. However, although
plan9.ini is used to set some config values (as the root file system
or the memory limit mentioned in this thread), 9vx cannot load a
kernel file. So:
There was a minor inconsistency. There is a comment in 9vx/mmu.c which
states that memsize can be overwritten with the '-m' option, but no -m
switch was provided in main. The following diff adds that (tested):
--- main.c 2011-05-26 08:34:02.687051389 -0500
+++ main.c 2011-05-26 08:34:10.830709411 -0500
@@ -170,6 +170,9 @@
username = EARGF(usage());
break;
+ case 'm':
+ memsize = atoi(EARGF(usage()));
+ break;
default:
usage();
}ARGEND
Also, thanks for the pointer. Setting memsize in a plan9.ini also
works.
i think you need to modify the 9vx kernel directly.
is right.
Modifying the 9vx kernel is not funny because of the bad state of the
.ed files in a/. I hope newer versions of gcc with plan9 extensions
make most of these scripts unnecessary, but as far as I know nobody
has tried.
The following command line switch (-n) adds an initial hack to
conf.nproc to override the 2000 hard coded limit. While this allws me
to now run over 64 threads, running it to high gives me a warning that
there are to many procs for devproc. I'm providing the patch here as
is, but will likely take a poke at it again over the weekend. As a
note, I need to be able to spawn over 3000 procs to stress test some
code. I would like to get this working under 9vx as well...
--- main.c 2011-05-26 08:40:00.286043255 -0500
+++ main.c 2011-05-26 08:43:42.369712636 -0500
@@ -64,6 +64,8 @@
static char* getuser(void);
+int nproclimit = 2000; // allow override of the hardlimit set to the
number of procs
+
void
usage(void)
{
@@ -173,6 +175,9 @@
case 'm':
memsize = atoi(EARGF(usage()));
break;
+ case 'n':
+ nproclimit = atoi(EARGF(usage()));
+ break;
default:
usage();
}ARGEND
@@ -284,8 +289,8 @@
conf.npage += conf.mem[i].npage;
conf.upages = conf.npage;
conf.nproc = 100 + ((conf.npage*BY2PG)/MB)*5;
- if(conf.nproc > 2000)
- conf.nproc = 2000;
+ if(conf.nproc > nproclimit)
+ conf.nproc = nproclimit;
conf.nimage = 200;
conf.nswap = 0;
conf.nswppo = 0;
I do not think I have write access to your 9vx repository, and I do not
know if you want the nproc limit hack. Let me know if you find these
acceptable.
EBo --
