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| author |   Jesper Dangaard Brouer <brouer@redhat.com> | 2014-08-28 18:14:47 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2014-09-01 18:06:59 -0700 |
| commit | afb84b6261841f8ab387e267e748236fa805bea0 (patch) | |
| tree | deb07ffc7c37287974233be17f49da1a459da757 /net/ipv4 | |
| parent | bnx2x: fix tunneled GSO over IPv6 (diff) | |
| download | linux-dev-afb84b6261841f8ab387e267e748236fa805bea0.tar.xz linux-dev-afb84b6261841f8ab387e267e748236fa805bea0.zip | |
pktgen: add flag NO_TIMESTAMP to disable timestamping
Then testing the TX limits of the stack, then it is useful to
be-able to disable the do_gettimeofday() timetamping on every packet.
This implements a pktgen flag NO_TIMESTAMP which will disable this
call to do_gettimeofday().
The performance change on (my system E5-2695) with skb_clone=0, goes
from TX 2,423,751 pps to 2,567,165 pps with flag NO_TIMESTAMP. Thus,
the cost of do_gettimeofday() or saving is approx 23 nanosec.
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
0 files changed, 0 insertions, 0 deletions