[9fans] fs benchmark

[9fans] fs benchmark

[Gorka guardiola]

Do any of you have a benchmark for measuring how fast a filesystem is
for plan 9?.
Read, writes, creates...
It doesnt take too much time to write one, but if anyone has already done it...

TIA.
-- 
- curiosity sKilled the cat

Re: [9fans] fs benchmark

[Steve Simon]

> Do any of you have a benchmark for measuring how fast a filesystem is
> for plan 9?.
> Read, writes, creates...
> It doesnt take too much time to write one, but if anyone has already done it...

iostats(4)

-Steve

[9fans] #D/ssl/n

[arisawa]

Hello,

one of my hosts is rejecting cpu command.

term% cpu -h co
cpu: waiting for FS: Hangup: Hangup
term%
or more simply
term% cpu -h co
cpu: waiting for FS: :
term%

the host left message in /sys/log/cpu:
cpu: srvauth: can't establish ssl connection: no free devices

this message comes from srvp9auth(int fd, char *user) in cpu.c
         /* set up encryption */
         i = pushssl(fd, ealgs, fromserversecret, fromclientsecret, nil);
         if(i < 0)
                 werrstr("can't establish ssl connection: %r");

pushssl() in   /sys/src/libc/9sys/pushssl.c is
         ctl = open("#D/ssl/clone", ORDWR);
         if(ctl < 0)
                 return -1;

really
% cat '#D/ssl/clone'
cat: can't open #D/ssl/clone: no free devices
% ls '#D/ssl'|wc
     129     129    1569
note #D/ssl include clone, therefore
% ls '#D/ssl'|grep -v clone|wc
     128     128    1554

Questions
(1) 128 is the limit of #D/ssl/n ?
(2) why #D/ssl/n is not freed ?
(3) what happened with my host if it should be freed ? any suggestion 
welcome.
(4) how to fix? rebooting is required ?

thanks in advance.

Kenji Arisawa

Re: [9fans] #D/ssl/n

[Russ Cox]

> (1) 128 is the limit of #D/ssl/n ?

x40=; grep 128 /sys/src/9/*/devssl.c
	Maxdstate=	128,	/* must be a power of 2 */

> (2) why #D/ssl/n is not freed ?

maybe they are in use.  grep /ssl/ /proc/*/fd | wc

> (3) what happened with my host if it should be freed ? any suggestion
> welcome.

kill the programs that are using them.
unless it's a kernel leak.

> (4) how to fix? rebooting is required ?

if it's really a kernel leak and not just programs
using them all, then yes you'll need to reboot.

russ

Re: [9fans] #D/ssl/n

[arisawa]

Hello Russ,

Thanks for your quick reply.

> maybe they are in use.  grep /ssl/ /proc/*/fd | wc
>

term% rx co rc -i
% grep ssl /proc/*/fd | wc
       0       0       0
% ls '#D/ssl' |wc
     129     129    1569
% cat '#D/ssl/clone'
cat: can't open #D/ssl/clone: no free devices
%

a kernel leak ?

Kenji Arisawa

Re: [9fans] fs benchmark

[Scott Schwartz]

| Do any of you have a benchmark for measuring how fast a filesystem is
| for plan 9?.

lmbench, with some hacking, and APE, maybe.

Re: [9fans] fs benchmark

[Jack Johnson]

On 5 Aug 2005 04:05:11 -0400, Scott Schwartz <schwartz@bio.cse.psu.edu> wrote:
> | Do any of you have a benchmark for measuring how fast a filesystem is
> | for plan 9?.
> 
> lmbench, with some hacking, and APE, maybe.

I was thinking the same thing, but maybe with bonnie:

http://www.textuality.com/bonnie/

-Jack