diff options
| author | Stephen Hemminger <shemminger@vyatta.com> | 2009-08-27 09:55:15 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-08-29 02:32:09 -0400 |
| commit | 5c9d191c166233e723e632e79bcca2127a5fece9 (patch) | |
| tree | 425324ef55119bb7420b4ab199e0a0821a3f157b /net/core | |
| parent | 5b8db2f568c4ee2a436f0e1c1416153e2878f869 (diff) | |
pktgen: avoid calling gettimeofday
If not using delay then no need to update next_tx after
each packet sent. This allows pktgen to send faster especially
on systems with slower clock sources.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/pktgen.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/net/core/pktgen.c b/net/core/pktgen.c index bce9bf4b4a62..b7302e18764a 100644 --- a/net/core/pktgen.c +++ b/net/core/pktgen.c | |||
| @@ -3450,15 +3450,17 @@ static void pktgen_xmit(struct pktgen_dev *pkt_dev) | |||
| 3450 | pkt_dev->last_ok = 0; | 3450 | pkt_dev->last_ok = 0; |
| 3451 | } | 3451 | } |
| 3452 | 3452 | ||
| 3453 | pkt_dev->next_tx_us = getCurUs(); | 3453 | if (pkt_dev->delay_us || pkt_dev->delay_ns) { |
| 3454 | pkt_dev->next_tx_ns = 0; | 3454 | pkt_dev->next_tx_us = getCurUs(); |
| 3455 | pkt_dev->next_tx_ns = 0; | ||
| 3455 | 3456 | ||
| 3456 | pkt_dev->next_tx_us += pkt_dev->delay_us; | 3457 | pkt_dev->next_tx_us += pkt_dev->delay_us; |
| 3457 | pkt_dev->next_tx_ns += pkt_dev->delay_ns; | 3458 | pkt_dev->next_tx_ns += pkt_dev->delay_ns; |
| 3458 | 3459 | ||
| 3459 | if (pkt_dev->next_tx_ns > 1000) { | 3460 | if (pkt_dev->next_tx_ns > 1000) { |
| 3460 | pkt_dev->next_tx_us++; | 3461 | pkt_dev->next_tx_us++; |
| 3461 | pkt_dev->next_tx_ns -= 1000; | 3462 | pkt_dev->next_tx_ns -= 1000; |
| 3463 | } | ||
| 3462 | } | 3464 | } |
| 3463 | } | 3465 | } |
| 3464 | __netif_tx_unlock_bh(txq); | 3466 | __netif_tx_unlock_bh(txq); |