example: -s 3/4m -- 768k, -i 1/10s -- 10 iops
Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>

Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>

Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>

Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>

Handle interval time as interval between requests starts.
Speed limit just set interval according to request size.
Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>

Normal results exclude cache hits and intervals between requests.
This prints results for all requests and total running time.
Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>

some crappy OSes don't have one.
Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>

Couple new keys: -y for O_DSYNC and -Y for D_SYNC.
Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>

This is just a hint, so print warning it fails.
Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>

This call wakeups device, as a result first ping is much faster.

Now non-cached write will simply fail if target doesn't support
fdatasync (for example /dev/null).

Also tweak errors and warnings a little.
Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>
Reported-by: Yuri Volchkov <yuri.volchkov@gmail.com>
Link: https://github.com/koct9i/ioping/pull/30

various build improvements

The -s flag to install breaks things when you cross-compile because
it only understands the native `strip`.  Just drop the flag and let
distros manage things themselves.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

This way people can replace the -O/-g settings w/out also messing up
the -std/-W settings.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

These contain user flags like -I/-D options.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

The makedev prototype is in sys/sysmacros.h, so include it.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>

Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>

Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>

Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>

Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>

Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>

Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>

Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>

Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>

Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>

Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>

Updated Readme with Examples

you can install ioping with the Nix package manager using `nix-env -i ioping`

Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>

Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>

Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>

This effectively turns off fdatasync() after direct write in this mode.
Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>

just for fun
Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>

Looks like FILE_FLAG_NO_BUFFERING works fine and similar to linux O_DIRECT.
Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>

Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>