gettimeofday() in hping
stefan.lambrev at moneybookers.com
Wed Jan 23 06:53:17 PST 2008
Now I have final results with Linux and FreeBSD on the same hardware
CPU: Intel(R) Xeon(R) CPU 3070 @ 2.66GHz - dual core
Lan: em0 at pci0:3:0:0: class=0x020000 card=0x10bc8086 chip=0x10bc8086
vendor = 'Intel Corporation'
device = '82571EB Gigabit Ethernet Controller (Copper)'
class = network
subclass = ethernet
FreeBSD releng_7_0 from today - amd64, sched_ule.
ACPI-Fast - 6.187 MB/s
TSC - 9.455 MB/s
dummy - 9.577 MB/s
Linux rambo2 2.6.22-14-generic #1 SMP Tue Dec 18 05:28:27 UTC 2007
x86_64 GNU/Linux - kubuntu
TSC - 19.456 MB/s
acpi_pm - 15.394 MB/s
jiffies - 19.480 MB/s
This is really not what I expected.
The other thing that bothers me is, that under freebsd is quite easy to get:
[send_ip] sendto: No buffer space available
It happens almost always on my laptop just few seconds after I start
hping with timecounter=TSC
and it is harder to reproduce with ACPI-fast and HPET.
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