gettimeofday() in hping

[Stefan Lambrev]

Hi Kris,

Kris Kennaway wrote:
> Stefan Lambrev wrote:
>> Hi Kris,
>>
>> Kris Kennaway wrote:
>>> Stefan Lambrev wrote:
>>>>
>>>> Kris Kennaway wrote:
>>>>> Stefan Lambrev wrote:
>>>>>
>>>>>>> You should use hwpmc to verify where the application is really 
>>>>>>> spending time, since gettimeofday doesn't seem to account for it 
>>>>>>> all.
>>>>>> pmc: Unknown Intel CPU.
>>>>>> module_register_init: MOD_LOAD (hwpmc, 0xffffffff8029906d, 
>>>>>> 0xffffffff8054c500) error 78
>>>>>
>>>>> OK, this is the famous problem with modern CPUs that jkoshy has 
>>>>> declined to work around :(  There are patches for this in 
>>>>> perforce, see
>>>>>
>>>>> http://perforce.freebsd.org/changeView.cgi?CH=126189
>> I got hwpmc to compile (but only as module)
>> hwpmc: TSC/1/0x20<REA> P6/2/0x1ff<INT,USR,SYS,EDG,THR,REA,WRI,INV,QUA>
>> but when I try to use pmcstat I receive this error message:
>> pmcstat: ERROR: Initialization of the pmc(3) library failed: Device 
>> not configured
>>
>> kldstat lists hwpmc.ko as loaded and I have options HWPMC_HOOKS in my 
>> kernel.
>>
>> Any idea what's go wrong?
>>
>
> You also need changes to the userland libpmc and pmcstat.  They should 
> also be in that (or related) p4 changeset though.
Those are the files that I fetched from p4

/usr/src/lib/libpmc/libpmc.c - rev2
/usr/src/sys/amd64/include/pmc_mdep.h rev2
/usr/src/sys/dev/hwpmc/hwpmc_x86.c rev2
/usr/src/sys/modules/hwpmc/Makefile rev3

but I rebuild only kernel - I'll try to rebuild everything :)
do you think this will help getting hwpmc working?

Btw I have hwpmc working on other machine (it's with FreeBSD 
6.3-prerelease).
Can you tell me what stats exactly you need from running hping?

-- 

Best Wishes,
Stefan Lambrev
ICQ# 24134177