Hi,

On Fri, 25 Feb 2011 08:41:20 +0900
Ryan McBride <mcbr...@openbsd.org> wrote:
..
>| The output of `systat mbufs` is worth looking at, in particular the
>| figure for LIVELOCKS, and the LWM/CWM figures for the interface(s) in
>| question. 
>| 
>| If the livelocks value is very high, and the LWM/CWM numbers are very
>| small, 

Thnak you for your help, Ryan.


It seems I'm in this situation:
   5 users    Load 0.17 0.15 0.10  (1-48 of 58)        Fri Feb 25 20:27:44
2011

IFACE             LIVELOCKS  SIZE ALIVE   LWM   HWM   CWM
System                        256 82050        5446
                               2k   257        1252
lo0
em0                      34    2k     4     4   256     4
em1                     257    2k     4     4   256     4
em2                  338382    2k     7     4   256     7
em3                    8258    2k     4     4   256     4
em4                   22635    2k    48     4   256    48
em5                    3470    2k     6     4   256     6
em6                  458241    2k    28     4   256    28
em7                       8    2k     4     4   256     4
em8                   33232    2k    50     4   256    50
em9                   46878    2k     4     4   256     4

"systat -s 2 vmstat":
   5 users    Load 0.22 0.17 0.10                      Fri Feb 25 20:28:18
2011

            memory totals (in KB)            PAGING   SWAPPING     Interrupts
           real   virtual     free           in  out   in  out    25589 total
Active   741204    741204  1761104   ops                           1600 clock
All     1278264   1278264  1761104   pages                           11 ipi
                                                                      1 em0
Proc:r  d  s  w    Csw   Trp   Sys   Int   Sof  Flt       forks         em1
          15        32     5   117 22867    99   33       fkppw    2691 em2
                                                          fksvm         em3
   3.2%Int   0.1%Sys   0.0%Usr   0.0%Nic  96.8%Idle       pwait    6778 em4
|    |    |    |    |    |    |    |    |    |    |       relck     382 em5
||                                                        rlkok    7328 em6
                                                          noram         em7
Namei         Sys-cache    Proc-cache    No-cache         ndcpy    6724 em8
    Calls     hits    %    hits     %    miss   %         fltcp      74 em9
                                                        3 zfod          uhci1
                                                          cow           ehci0
Disks   wd0   cd0   sd0                             25328 fmin          ehci1
seeks                                               33770 ftarg
pciide0 xfers
itarg         com0 speed                                                 241
wired         com1 sec
pdfre         pckbc0 pdscn
                                                          pzidle
                                                       44 kmapent


                                                                  81542 IPKTS
                                                                  78860 OPKTS


(it's on a device with MAX_INTS_PER_SEC=8000)


>|it is likely that the MCLGETI interface is protecting your system
>| from being completly flattened by forcing the em card to drop packets
>| (supported by your statement that the error rate is high). 
>| 
>| How about a _full_ dmesg, so someone can take a wild guess at what
>| your machine is capable of?

http://www.oxymium.net/tmp/core3-dmesg

This device is not overloaded but it drop packets :-(

Manuel 

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