slab/slub
From: Robert Olsson <hidden>
Date: 2008-10-21 08:45:05
Stephen, We discussed slab vs slub sometime ago. In a very simple forwarding test using one CPU-core: SLAB ~1.0 Mpps SLUB ~1.0 Mpps Cheers. --ro ixgbe multiQ driver 64 byte pkts Linux version 2.6.27-rc2bifrost-11946-g6ced0b3-dirty (root@gatling) (gcc version 4.2.2) #10 SMP Wed Aug 13 22:16:13 CEST 2008 SLAB eth0 input 2.30 Mpps Iface MTU Met RX-OK RX-ERR RX-DRP RX-OVR TX-OK TX-ERR TX-DRP TX-OVR Flg eth0 1500 0 4457671 0 5542329 0 6 0 0 0 BMRU eth1 1500 0 1 0 0 0 4456529 0 0 0 BMRU softnet_stat 00000008 00000001 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 004404c8 00880094 0000417c 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 ------------------------------------------------------------------------------ SLUB eth0 input 2.34 Mpps Iface MTU Met RX-OK RX-ERR RX-DRP RX-OVR TX-OK TX-ERR TX-DRP TX-OVR Flg eth0 1500 0 4274583 0 5725417 0 6 0 0 0 BMRU eth1 1500 0 1 0 0 0 4273633 0 0 0 BMRU softnet_stat 00000008 00000001 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00413998 00826bb4 00003b7c 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000