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| author | David S. Miller <davem@davemloft.net> | 2017-08-30 11:20:09 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-08-30 11:20:09 -0700 |
| commit | 2c667d40a67a6a49343a75437b5e49d301a07a53 (patch) | |
| tree | a4635a632732b39ef560a8f72eb3a81d04f01605 /include/uapi/linux | |
| parent | 0da93d2ebb5d198a4601bd5ad7695f3c6fd36062 (diff) | |
| parent | 31770e34e43d6c8dee129bfee77e56c34e61f0e5 (diff) | |
| download | op-kernel-dev-2c667d40a67a6a49343a75437b5e49d301a07a53.zip op-kernel-dev-2c667d40a67a6a49343a75437b5e49d301a07a53.tar.gz | |
Merge branch 'tcp-readd-hp'
Florian Westphal says:
====================
tcp: re-add header prediction
Eric reported a performance regression caused by header prediction
removal.
We now call tcp_ack() much more frequently, for some workloads
this brings in enough cache line misses to become noticeable.
We could possibly still kill HP provided we find a different
way to suppress unneeded tcp_ack, but given we're late in
the cycle it seems preferable to revert.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/uapi/linux')
| -rw-r--r-- | include/uapi/linux/snmp.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/uapi/linux/snmp.h b/include/uapi/linux/snmp.h index b3f346f..758f12b 100644 --- a/include/uapi/linux/snmp.h +++ b/include/uapi/linux/snmp.h @@ -184,7 +184,9 @@ enum LINUX_MIB_DELAYEDACKLOST, /* DelayedACKLost */ LINUX_MIB_LISTENOVERFLOWS, /* ListenOverflows */ LINUX_MIB_LISTENDROPS, /* ListenDrops */ + LINUX_MIB_TCPHPHITS, /* TCPHPHits */ LINUX_MIB_TCPPUREACKS, /* TCPPureAcks */ + LINUX_MIB_TCPHPACKS, /* TCPHPAcks */ LINUX_MIB_TCPRENORECOVERY, /* TCPRenoRecovery */ LINUX_MIB_TCPSACKRECOVERY, /* TCPSackRecovery */ LINUX_MIB_TCPSACKRENEGING, /* TCPSACKReneging */ |
