Hello folks,
I'm seeing something odd with r8169 on FC7: doing a ping -s 1600 alternates
between a 1s latency and sub 1ms. Has anyone else seen anything like this?
The system in question is an Asus M2A-VM with an onboard RTL8111 (I think).
NAPI doesn't seem to make a difference. The kernel in question is currently
a vanilla 2.6.21.5. Sub-mtu sized packets behave normally.
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI
Express Gigabit Ethernet controller (rev 01)
PING 1.2.3.4 (1.2.3.4) 1600(1628) bytes of data.
1608 bytes from 1.2.3.4: icmp_seq=1 ttl=64 time=1000 ms
1608 bytes from 1.2.3.4: icmp_seq=2 ttl=64 time=0.816 ms
1608 bytes from 1.2.3.4: icmp_seq=3 ttl=64 time=1000 ms
1608 bytes from 1.2.3.4: icmp_seq=4 ttl=64 time=0.661 ms
-ben
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