driver in Linux 2.6. uscanner was just a simple wrapper around a fifo and
contained no logic, the default interface is now libusb (supported by sane).
Reviewed by: HPS
This tool creates large numbers of TCP connections, each of which will
transmit a fixed amount of data, between client and server hosts. tcpp can
use multiple workers (typically up to the number of hardware cores), and can
use multiple source IPs in order to use an expanded port/IP 4-tuple space to
avoid problems from reusing 4-tuples too quickly. Aggregate bandwidth use
will be reported after a client run.
While by no means a perfect tool, it has proven quite useful in generating
and optimizing TCP stack lock contention by easily generating high-intensity
workloads. It also proves surprisingly good at finding device driver bugs.
colliding upper case letters as the lower case letter with a '_' in
front.
MFC after: 3 days
Discussed with: ed
Spotted by: Michael David Crawford <mdc at prgmr.com>
o turn off a bunch of stuff that's unlikely to be used
o add flash support
o use mii instead of miibus to save space
o enable tdma support
o configure legacy usb as usb2 works only on 2348 w/ 64M configs
The function pow() in libmp(3) clashes with pow(3) in libm. We could
rename this single function, but we can just take the same approach as
the Solaris folks did, which is to prefix all function names with mp_.
libmp(3) isn't really popular nowadays. I suspect not a single
application in ports depends on it. There's still a chance, so I've
increased the SHLIB_MAJOR and __FreeBSD_version.
Reviewed by: deischen, rdivacky
It is only really necessary for open(2)'s third argument, which is optional and
obtained through stdarg(3). open(2)'s third argument is 32bit and we pass 64
bits. On little endian it works, because we take lower 32 bits, but on big
endian platforms we take upper 32 bits, so we end up with 0.
Reported by: Milan Čermák <Milan.Cermak@Sun.COM>
allocated in a fork(2)-inheritable way at the beginning or end of an
accept(2) system call. This test creates a test thread and blocks it
in accept(2), then forks a child process which tests to see if the
next available file descriptor is defined or not (EBADF vs EINVAL for
ftruncate(2)).
This detects a regression introduced during the network stack locking
work, in which a very narrow race during which fork(2) from one
thread during accept(2) in a second thread lead to an extra inherited
file descriptor turned into a very wide race ensuring that a
descriptor was leaked into the child even though it hadn't been
returned.
PR: kern/130348
- Print human readable time as a float with two digits of precision. Use
ns now as well since clock periods are well into the hundreds of
picoseconds now.
- Show the average duration in the stats frame. This is often more useful
than total duration.
about invalid timestamps. Nehalem CPUs seem to be synchronized but only
within a fraction of a microsecond.
- Make the Counter code more flexible to poor timestamps. In general we
now complain a lot but render as much as we can.
- Change the scaler behavior so it works better with very long and very
short traces. We now set the maximum scale such that it properly
displays the entire file by default and doesn't permit zooming out
beyond the file. This improves other awkward navigation behavior.
The interval is now set very small which can't be achieved by simply
dragging the mouse. Clicking to the left of or right of the scaler bar
will produce increments of a single, very small, interval now.
Sponsored by: Nokia
