Re: mimeheaders etc

[Eugene Crosser <crosser@online.ru>]

On  1-Dec-00 at 12:40, Matti Aarnio (mea@nic.funet.fi) wrote:

> > Also, to my taste mailbox processes are using too much CPU.  In "top"
> > display, they show 2+% cpu each *even* if they do not perform delivery
> > at the moment!
> 
>    It could be an artifact from the way how "top" accumulates information.

Could be.

>    Could you  truss  such process to see if it does some syscalls ?
>    (It would, after all, spend a lot more CPU if it were busy spinning..)

Possibly this is some Solaris speciality:

...
link("/var/virtual/online.ru/mail/F/F/owen2000.L2a3c.3a27745d.80c4e5bf",
"/var/virtual/online.ru/mail/F/F/owen2000.lock") = 0
stat("/var/virtual/online.ru/mail/F/F/owen2000.L2a3c.3a27745d.80c4e5bf",
0xFFBEE0E8) = 0
unlink("/var/virtual/online.ru/mail/F/F/owen2000.L2a3c.3a27745d.80c4e5bf") = 0
lseek(7, 0, SEEK_SET)                           = 0
fcntl(7, F_SETLKW, 0xFFBEEA5C)  (sleeping...)
signotifywait()                 (sleeping...)
door_return(0x00000000, 0, 0x00000000, 0) (sleeping...)
lwp_cond_wait(0xFF0BF618, 0xFF0BF628, 0xFF073CA0) (sleeping...)
lwp_sema_wait(0xFF0BC8D8)       (sleeping...)

and here it stops scrolling and waits.  Does not make very much sense to
me, though...  Other case, same process:

write(1, " # h u n g r y\n", 8)                 = 8
read(0, " # i d l e\n", 8192)                   = 6
write(1, " # h u n g r y\n", 8)                 = 8
read(0, 0x0005395C, 8192)       (sleeping...)
signotifywait()                 (sleeping...)
door_return(0x00000000, 0, 0x00000000, 0) (sleeping...)
lwp_cond_wait(0xFF0BF618, 0xFF0BF628, 0xFF073CA0) (sleeping...)
lwp_sema_wait(0xFF0BC8D8)       (sleeping...)

Eugene