CentOS 5.3에서 실행중인 서버가 있습니다 (혜성 채팅 서버, 많은 TCP 연결을 갖습니다). 최근에 나는 그것이 매우 느리다는 것을 알았으므로 (http 서비스와 ssh) "ifconfig"명령을 사용하여 무슨 일이 있었는지 알아 냈습니다.
eth0 Link encap:Ethernet HWaddr 00:1C:C0:B5:D5:EA
inet addr:10.0.0.61 Bcast:10.0.0.255 Mask:255.255.255.0
inet6 addr: fe80::21c:c0ff:feb5:d5ea/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:871861 errors:0 dropped:489662344145 overruns:0 frame:0
TX packets:639044 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:207239658 (197.6 MiB) TX bytes:169416201 (161.5 MiB)
Interrupt:225 Base address:0x6000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:44497 errors:0 dropped:0 overruns:0 frame:0
TX packets:44497 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:11470951 (10.9 MiB) TX bytes:11470951 (10.9 MiB)
네트워크를 다시 시작하면 모든 것이 잘 진행됩니다. 그러나 일정 시간이 지나면 다시 느려집니다.
누군가 도울 수 있습니까?
업데이트 :
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Rajat가 요청한대로 진단을위한 정보를 게시하겠습니다.
uname -a
Linux im.cluster.myserver.com 2.6.18-128.el5 #1 SMP Wed Jan 21 10:41:14 EST 2009 x86_64 x86_64 x86_64 GNU/Linux
sudo /sbin/lspci | grep Ethernet
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 03)
sudo dmesg | grep eth0
eth0: RTL8168d/8111d at 0xffffc20000006000, 00:1c:c0:b5:d5:ea, XID 281000c0 IRQ 225
r8169: eth0: link up
r8169: eth0: link up
eth0: no IPv6 routers present
r8169: eth0: link up
eth0: no IPv6 routers present
sudo /sbin/ethtool eth0
Settings for eth0:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Advertised auto-negotiation: Yes
Speed: 1000Mb/s
Duplex: Full
Port: MII
PHYAD: 0
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: pumbg
Wake-on: p
Current message level: 0x00000033 (51)
Link detected: yes
sudo /sbin/ethtool -k eth0
Offload parameters for eth0:
Cannot get device udp large send offload settings: Operation not supported
rx-checksumming: on
tx-checksumming: off
scatter-gather: off
tcp segmentation offload: off
udp fragmentation offload: off
generic segmentation offload: off
sudo /sbin/ethtool -S eth0
NIC statistics:
tx_packets: 4483119
rx_packets: 7443820
tx_errors: 0
rx_errors: 0
rx_missed: 0
align_errors: 0
tx_single_collisions: 0
tx_multi_collisions: 0
unicast: 3591906
broadcast: 442720
multicast: 3851914
tx_aborted: 0
tx_underrun: 0
스위치 상태에서 링크 상태는 어떻게 보입니까? <mallicious_mode> RTL8168d-알겠습니다. 문제가 있습니다. realtek ... </
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mallicious_mode