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Old 11-23-2012, 12:16 AM   #1
td3201
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Question poor NFS performance for one client only


Hello,

I have a real head scratcher here. I have three application servers that all use three volumes mounted off of two NFS servers. All operating systems involved are RHEL 6.3.
dss01a - application
dss01b - application
dss01c - application
nfs01a - NFS server exports: /data01b
nfs01b - NFS server exports: /data01a, data01c

The problem is dss01c gets around 5 MB/s basic write speed to nfs01b (both /data01a and /data01c volumes) over NFS. This server gets over 100 MB/s to the other NFS server. The problem does not occur over other protocols such as SSH or using netcat.

The configuration between the three application servers is identical (NICs, mount, etc). The configuration between the two NFS servers is also identical.

Since I am not seeing any issues with any other protocol, I am ruling out network configuration and thus purely focusing on NFS.

Does anyone have any additional troubleshooting ideas to help me narrow this down?
 
Old 11-23-2012, 01:43 AM   #2
linosaurusroot
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Id like to see "ifconfig -a" output of all clients and the nfs01b. And "/sbin/mii-tool -v" if you have it. Are the clients all on the same package versions?
 
Old 11-23-2012, 07:53 AM   #3
td3201
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First, thank you for the reply. mii-tool shows they negotiated at 100/Full but ethtool shows 1000/Full.

dss01c (problem client)
[root@dss01c ~]# ifconfig -a
bond0 Link encap:Ethernet HWaddr 00:19:B9:E7:02:53
inet addr:10.199.1.102 Bcast:10.199.1.255 Mask:255.255.255.0
inet6 addr: fe80::219:b9ff:fee7:253/64 Scope:Link
UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1
RX packets:13029042 errors:0 dropped:0 overruns:0 frame:0
TX packets:9811625 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:8616213029 (8.0 GiB) TX bytes:5599520278 (5.2 GiB)

bond1 Link encap:Ethernet HWaddr 00:15:17:AD:22:32
inet addr:10.198.1.102 Bcast:10.198.1.255 Mask:255.255.255.0
inet6 addr: fe80::215:17ff:fead:2232/64 Scope:Link
UP BROADCAST RUNNING MASTER MULTICAST MTU:9000 Metric:1
RX packets:26450069 errors:0 dropped:0 overruns:0 frame:0
TX packets:24731532 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:134022024904 (124.8 GiB) TX bytes:109700344753 (102.1 GiB)

eth0 Link encap:Ethernet HWaddr 00:19:B9:E7:02:53
UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1
RX packets:1501842 errors:0 dropped:0 overruns:0 frame:0
TX packets:406819 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:2000
RX bytes:494706070 (471.7 MiB) TX bytes:57499228 (54.8 MiB)
Interrupt:16 Memory:f8000000-f8012800

eth1 Link encap:Ethernet HWaddr 00:19:B9:E7:02:53
UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1
RX packets:11527200 errors:0 dropped:0 overruns:0 frame:0
TX packets:9404806 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:2000
RX bytes:8121506959 (7.5 GiB) TX bytes:5542021050 (5.1 GiB)
Interrupt:16 Memory:f4000000-f4012800

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:33 errors:0 dropped:0 overruns:0 frame:0
TX packets:33 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:5341 (5.2 KiB) TX bytes:5341 (5.2 KiB)

p2p1 Link encap:Ethernet HWaddr 00:15:17:AD:22:32
UP BROADCAST RUNNING SLAVE MULTICAST MTU:9000 Metric:1
RX packets:7049557 errors:0 dropped:0 overruns:0 frame:0
TX packets:10164437 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:2000
RX bytes:8203494848 (7.6 GiB) TX bytes:22263200771 (20.7 GiB)
Interrupt:16 Memory:fc3e0000-fc400000

p2p2 Link encap:Ethernet HWaddr 00:15:17:AD:22:32
UP BROADCAST RUNNING SLAVE MULTICAST MTU:9000 Metric:1
RX packets:19400512 errors:0 dropped:0 overruns:0 frame:0
TX packets:14567095 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:2000
RX bytes:125818530056 (117.1 GiB) TX bytes:87437143982 (81.4 GiB)

[root@dss01c ~]# cat /proc/net/bonding/bond1
Ethernet Channel Bonding Driver: v3.6.0 (September 26, 2009)

Bonding Mode: IEEE 802.3ad Dynamic link aggregation
Transmit Hash Policy: layer2 (0)
MII Status: up
MII Polling Interval (ms): 60
Up Delay (ms): 0
Down Delay (ms): 0

802.3ad info
LACP rate: slow
Aggregator selection policy (ad_select): stable
Active Aggregator Info:
Aggregator ID: 2
Number of ports: 2
Actor Key: 17
Partner Key: 10013
Partner Mac Address: 00:1b:ed:80:17:c0

Slave Interface: p2p1
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 1
Permanent HW addr: 00:15:17:ad:22:32
Aggregator ID: 2
Slave queue ID: 0

Slave Interface: p2p2
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 1
Permanent HW addr: 00:15:17:ad:22:33
Aggregator ID: 2
Slave queue ID: 0

[root@dss01c ~]# mii-tool -v p2p1
p2p1: negotiated 100baseTx-FD flow-control, link ok
product info: vendor 00:aa:00, model 56 rev 0
basic mode: autonegotiation enabled
basic status: autonegotiation complete, link ok
capabilities: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
advertising: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow-control
link partner: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow-control
[root@dss01c ~]# mii-tool -v p2p2
p2p2: negotiated 100baseTx-FD flow-control, link ok
product info: vendor 00:aa:00, model 56 rev 0
basic mode: autonegotiation enabled
basic status: autonegotiation complete, link ok
capabilities: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
advertising: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow-control
link partner: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow-control



dss01b (good client)
[root@dss01b ~]# ifconfig -a
bond0 Link encap:Ethernet HWaddr 00:1D:09:71:98:CA
inet addr:10.199.1.101 Bcast:10.199.1.255 Mask:255.255.255.0
inet6 addr: fe80::21d:9ff:fe71:98ca/64 Scope:Link
UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1
RX packets:2956041533 errors:0 dropped:0 overruns:0 frame:0
TX packets:3952410818 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:2482716743909 (2.2 TiB) TX bytes:4187156004173 (3.8 TiB)

bond1 Link encap:Ethernet HWaddr 00:15:17:A5:66:28
inet addr:10.198.1.101 Bcast:10.198.1.255 Mask:255.255.255.0
inet6 addr: fe80::215:17ff:fea5:6628/64 Scope:Link
UP BROADCAST RUNNING MASTER MULTICAST MTU:9000 Metric:1
RX packets:6393965280 errors:0 dropped:0 overruns:0 frame:0
TX packets:5924477304 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:31398320705419 (28.5 TiB) TX bytes:5886681482828 (5.3 TiB)

eth0 Link encap:Ethernet HWaddr 00:15:17:A5:66:28
UP BROADCAST RUNNING SLAVE MULTICAST MTU:9000 Metric:1
RX packets:3049351898 errors:0 dropped:0 overruns:0 frame:0
TX packets:394198413 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:2000
RX bytes:15942999947136 (14.5 TiB) TX bytes:304387170969 (283.4 GiB)
Interrupt:16 Memory:fc3e0000-fc400000

eth1 Link encap:Ethernet HWaddr 00:15:17:A5:66:28
UP BROADCAST RUNNING SLAVE MULTICAST MTU:9000 Metric:1
RX packets:3344613382 errors:0 dropped:0 overruns:0 frame:0
TX packets:5530278891 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:2000
RX bytes:15455320758283 (14.0 TiB) TX bytes:5582294311859 (5.0 TiB)
Interrupt:17 Memory:fc3a0000-fc3c0000

eth2 Link encap:Ethernet HWaddr 00:1D:09:71:98:CA
UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1
RX packets:1469795632 errors:0 dropped:0 overruns:0 frame:0
TX packets:3926237389 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:2000
RX bytes:1226697697626 (1.1 TiB) TX bytes:4169371617353 (3.7 TiB)
Interrupt:16 Memory:f8000000-f8012800

eth3 Link encap:Ethernet HWaddr 00:1D:09:71:98:CA
UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1
RX packets:1486245901 errors:0 dropped:0 overruns:0 frame:0
TX packets:26173429 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:2000
RX bytes:1256019046283 (1.1 TiB) TX bytes:17784386820 (16.5 GiB)
Interrupt:16 Memory:f4000000-f4012800

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:5052891 errors:0 dropped:0 overruns:0 frame:0
TX packets:5052891 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:423367352 (403.7 MiB) TX bytes:423367352 (403.7 MiB)
[root@dss01b ~]# cat /proc/net/bonding/bond1
Ethernet Channel Bonding Driver: v3.6.0 (September 26, 2009)

Bonding Mode: IEEE 802.3ad Dynamic link aggregation
Transmit Hash Policy: layer2 (0)
MII Status: up
MII Polling Interval (ms): 60
Up Delay (ms): 0
Down Delay (ms): 0

802.3ad info
LACP rate: slow
Aggregator selection policy (ad_select): stable
Active Aggregator Info:
Aggregator ID: 1
Number of ports: 2
Actor Key: 17
Partner Key: 10006
Partner Mac Address: 00:1b:ed:80:17:c0

Slave Interface: eth0
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 2
Permanent HW addr: 00:15:17:a5:66:28
Aggregator ID: 1
Slave queue ID: 0

Slave Interface: eth1
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 2
Permanent HW addr: 00:15:17:a5:66:29
Aggregator ID: 1
Slave queue ID: 0

[root@dss01b ~]# mii-tool -v eth0
eth0: negotiated 100baseTx-FD flow-control, link ok
product info: vendor 00:aa:00, model 56 rev 0
basic mode: autonegotiation enabled
basic status: autonegotiation complete, link ok
capabilities: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
advertising: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow-control
link partner: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow-control
[root@dss01b ~]# mii-tool -v eth1
eth1: negotiated 100baseTx-FD flow-control, link ok
product info: vendor 00:aa:00, model 56 rev 0
basic mode: autonegotiation enabled
basic status: autonegotiation complete, link ok
capabilities: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
advertising: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow-control
link partner: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow-control


For good measure, here's one of the ethtool outputs that shows we are at 1000/Full. I'll triple check on the switch side too:
[root@dss01b ~]# ethtool eth0
Settings for eth0:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Advertised pause frame use: No
Advertised auto-negotiation: Yes
Speed: 1000Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
MDI-X: off
Supports Wake-on: pumbg
Wake-on: d
Current message level: 0x00000001 (1)
Link detected: yes


nfs01b
[root@nfs01b grid]# ifconfig -a
bond0 Link encap:Ethernet HWaddr 00:1D:09:71:97:3F
inet addr:10.198.1.111 Bcast:10.198.1.255 Mask:255.255.255.0
inet6 addr: fe80::21d:9ff:fe71:973f/64 Scope:Link
UP BROADCAST RUNNING MASTER MULTICAST MTU:9000 Metric:1
RX packets:1408007135 errors:603 dropped:0 overruns:0 frame:603
TX packets:1555843721 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1339715982935 (1.2 TiB) TX bytes:8184089223283 (7.4 TiB)

bond0:1 Link encap:Ethernet HWaddr 00:1D:09:71:97:3F
inet addr:10.198.1.113 Bcast:10.198.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MASTER MULTICAST MTU:9000 Metric:1

bond0:3 Link encap:Ethernet HWaddr 00:1D:09:71:97:3F
inet addr:10.198.1.115 Bcast:10.198.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MASTER MULTICAST MTU:9000 Metric:1

eth0 Link encap:Ethernet HWaddr 00:1D:09:71:97:3F
UP BROADCAST RUNNING SLAVE MULTICAST MTU:9000 Metric:1
RX packets:399947840 errors:0 dropped:0 overruns:0 frame:0
TX packets:7672 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:2000
RX bytes:300127044161 (279.5 GiB) TX bytes:980800 (957.8 KiB)
Interrupt:16 Memory:f8000000-f8012800

eth1 Link encap:Ethernet HWaddr 00:1D:09:71:97:3F
UP BROADCAST RUNNING SLAVE MULTICAST MTU:9000 Metric:1
RX packets:274332454 errors:603 dropped:0 overruns:0 frame:603
TX packets:11798913 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:2000
RX bytes:191624805026 (178.4 GiB) TX bytes:31845712465 (29.6 GiB)
Interrupt:16 Memory:f4000000-f4012800

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:44 errors:0 dropped:0 overruns:0 frame:0
TX packets:44 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:3454 (3.3 KiB) TX bytes:3454 (3.3 KiB)

p1p1 Link encap:Ethernet HWaddr 00:15:17:6C:E4:88
inet addr:10.1.0.151 Bcast:10.1.0.255 Mask:255.255.255.0
inet6 addr: fe80::215:17ff:fe6c:e488/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:9000 Metric:1
RX packets:514583964 errors:0 dropped:0 overruns:0 frame:0
TX packets:328238028 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:2000
RX bytes:3551414852969 (3.2 TiB) TX bytes:402439759172 (374.8 GiB)
Interrupt:16 Memory:fc5e0000-fc600000

p1p2 Link encap:Ethernet HWaddr 00:1D:09:71:97:3F
UP BROADCAST RUNNING SLAVE MULTICAST MTU:9000 Metric:1
RX packets:733726841 errors:0 dropped:0 overruns:0 frame:0
TX packets:1544037136 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:2000
RX bytes:847964133748 (789.7 GiB) TX bytes:8152242530018 (7.4 TiB)
Interrupt:17 Memory:fc5a0000-fc5c0000

p2p1 Link encap:Ethernet HWaddr 00:15:17:6C:E5:AE
inet addr:10.1.0.153 Bcast:10.1.0.255 Mask:255.255.255.0
inet6 addr: fe80::215:17ff:fe6c:e5ae/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:9000 Metric:1
RX packets:545714107 errors:0 dropped:0 overruns:0 frame:0
TX packets:345694600 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:2000
RX bytes:3799060983542 (3.4 TiB) TX bytes:411813015556 (383.5 GiB)
Interrupt:16 Memory:fc3e0000-fc400000

p2p2 Link encap:Ethernet HWaddr 00:15:17:6C:E5:AF
inet addr:10.1.0.155 Bcast:10.1.0.255 Mask:255.255.255.0
inet6 addr: fe80::215:17ff:fe6c:e5af/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:9000 Metric:1
RX packets:484645571 errors:0 dropped:0 overruns:0 frame:0
TX packets:310892019 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:2000
RX bytes:3346723600136 (3.0 TiB) TX bytes:385654579450 (359.1 GiB)
Interrupt:17 Memory:fc3a0000-fc3c0000

[root@nfs01b grid]# cat /proc/net/bonding/bond0
Ethernet Channel Bonding Driver: v3.6.0 (September 26, 2009)

Bonding Mode: IEEE 802.3ad Dynamic link aggregation
Transmit Hash Policy: layer2 (0)
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0

802.3ad info
LACP rate: slow
Aggregator selection policy (ad_select): stable
Active Aggregator Info:
Aggregator ID: 1
Number of ports: 3
Actor Key: 17
Partner Key: 10010
Partner Mac Address: 00:1b:ed:80:17:c0

Slave Interface: eth0
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 3
Permanent HW addr: 00:1d:09:71:97:3f
Aggregator ID: 1
Slave queue ID: 0

Slave Interface: eth1
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 3
Permanent HW addr: 00:1d:09:71:97:41
Aggregator ID: 1
Slave queue ID: 0

Slave Interface: p1p2
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 2
Permanent HW addr: 00:15:17:6c:e4:89
Aggregator ID: 1
Slave queue ID: 0

[root@nfs01b grid]# mii-tool -v eth0
eth0: negotiated 100baseTx-FD flow-control, link ok
product info: vendor 00:08:18, model 54 rev 6
basic mode: autonegotiation enabled
basic status: autonegotiation complete, link ok
capabilities: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
advertising: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow-control
link partner: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow-control
[root@nfs01b grid]# mii-tool -v eth1
eth1: negotiated 100baseTx-FD flow-control, link ok
product info: vendor 00:08:18, model 54 rev 6
basic mode: autonegotiation enabled
basic status: autonegotiation complete, link ok
capabilities: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
advertising: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow-control
link partner: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow-control
[root@nfs01b grid]# mii-tool -v p1p2
p1p2: negotiated 100baseTx-FD flow-control, link ok
product info: vendor 00:aa:00, model 56 rev 0
basic mode: autonegotiation enabled
basic status: autonegotiation complete, link ok
capabilities: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
advertising: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow-control
link partner: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow-control

[root@nfs01b grid]# cat /etc/exports
/data01a dss01a(async,no_root_squash,rw,no_subtree_check) dss01b(async,no_root_squash,rw,no_subtree_check) dss01c(async,no_root_squash,rw,no_subtree_check)
/data01b dss01a(async,no_root_squash,rw,no_subtree_check) dss01b(async,no_root_squash,rw,no_subtree_check) dss01c(async,no_root_squash,rw,no_subtree_check)
/data01c dss01a(async,no_root_squash,rw,no_subtree_check) dss01b(async,no_root_squash,rw,no_subtree_check) dss01c(async,no_root_squash,rw,no_subtree_check)

[root@dss01c ~]# cat /etc/fstab | grep nfs
omadvnfs01-nfs-a:/data01a /data01a nfs rw,suid,dev,exec,auto,nouser,async,noatime,nodiratime,_netdev,rsize=32768,wsize=32768,nolock,nfsvers =3 0 0
omadvnfs01-nfs-b:/data01b /data01b nfs rw,suid,dev,exec,auto,nouser,async,noatime,nodiratime,_netdev,rsize=32768,wsize=32768,nolock,nfsvers =3 0 0
omadvnfs01-nfs-c:/data01c /data01c nfs rw,suid,dev,exec,auto,nouser,async,noatime,nodiratime,_netdev,rsize=32768,wsize=32768,nolock,nfsvers =3 0 0

 
Old 11-23-2012, 07:57 AM   #4
td3201
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Recall that dss01c can communicate to nfs01a just fine. It's just to nfs01b. So one can assume the network config of dss01c and nfs01b independently are good just problematic when talking to each other. Also, it's just via NFS. I can do netcat tests between the hosts and it pans out fine.

Last edited by td3201; 11-23-2012 at 08:11 AM.
 
Old 11-23-2012, 09:29 AM   #5
linosaurusroot
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Could path MTU discovery be different between them - affecting fragmentation?

Are NFS s/w versions and export/mount options the same?

Is the workload just NFS write - nothing else such as compilation or search paths or user lookups causing more work to be done?
 
Old 11-23-2012, 09:35 AM   #6
td3201
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Quote:
Originally Posted by linosaurusroot View Post
Could path MTU discovery be different between them - affecting fragmentation?
MTU is 9000 through the entire path.

Quote:
Originally Posted by linosaurusroot View Post
Are NFS s/w versions and export/mount options the same?
Yes, same on both.

Quote:
Originally Posted by linosaurusroot View Post
Is the workload just NFS write - nothing else such as compilation or search paths or user lookups causing more work to be done?
It's not load related as the other NFS clients show really good performance using the same tests.
 
Old 12-20-2012, 02:30 AM   #7
evillene
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Registered: Dec 2012
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Hi TD3201,
Did you manage to resolve your issue?
I have a similar problem and cannot identify any further stuff to check/correct.

http://www.linuxquestions.org/questi...ow-4175442032/

Thanks,
- Ned
 
  


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