slackware 13.0运行CS(HLDS)服务器满30人跳ping

n260009610

slackware 13.0+hlds 4617
20人内还不跳ping
到了30人就开始跳ping了
10-30的跳(内网)
怎么优化啊

信息:
root@hlserver:~# uname -a
Linux hlserver 2.6.29.6-smp #2 SMP Mon Aug 17 00:52:54 CDT 2009 i686 Intel(R) Xeon(TM) CPU 3.06GHz GenuineIntel GNU/Linux

root@hlserver:~# cat /proc/scsi/scsi
Attached devices:
Host: scsi2 Channel: 00 Id: 00 Lun: 00
  Vendor: MAXTOR   Model: ATLAS10K4_36WLS  Rev: DFV0
  Type:   Direct-Access                    ANSI  SCSI revision: 03

root@hlserver:~# dmesg | grep -i 'eth'
Driver 'st' needs updating - please use bus_type methods
Driver 'sd' needs updating - please use bus_type methods
Driver 'sr' needs updating - please use bus_type methods
eth0: Tigon3 [partno(BCM95703A30) rev 1002] (PCIX:100MHz:64-bit) MAC address 00:0d:60:1b:30:5e
eth0: attached PHY is 5703 (10/100/1000Base-T Ethernet) (WireSpeed[1])
eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] TSOcap[1]
eth0: dma_rwctrl[769c4000] dma_mask[64-bit]
eth1: Tigon3 [partno(BCM95703A30) rev 1002] (PCIX:100MHz:64-bit) MAC address 00:0d:60:1b:30:5f
eth1: attached PHY is 5703 (10/100/1000Base-T Ethernet) (WireSpeed[1])
eth1: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] TSOcap[1]
eth1: dma_rwctrl[769c4000] dma_mask[64-bit]
ADDRCONF(NETDEV_UP): eth0: link is not ready
ADDRCONF(NETDEV_UP): eth1: link is not ready
tg3: eth0: Link is up at 1000 Mbps, full duplex.
tg3: eth0: Flow control is off for TX and off for RX.
ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
eth0: no IPv6 routers present