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Old 03-02-2013, 02:58 PM   #1
Foxblood
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High ping times on 2nd hard drive


Hi,

I tripleboot, Sabayon and Win 7 on the first hard drive and Arch on the second hard drive. I had no problems for about three weeks after installing Arch. Suddenly, ping times are dreadful in Arch, on the second hard drive. Ping results are about 9 ms on Sabayon and Win 7 but an abysmal 3500 or so on Arch. I strongly suspect a physical problem but have no clue where to look. Any help appreciated.

Regards,

Jim
 
Old 03-02-2013, 03:42 PM   #2
acid_kewpie
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why would you associate a disk drive with network response times??? there will not ABSOLUTELY NO CONNECTION, it just makes no sense at all. You might as well say red cars go faster then blue ones :s

Can you show us some example outputs? runnings tools like mtr (you'll need to install it) can be very useful to see the delays per hop to the destination.
 
Old 03-02-2013, 06:22 PM   #3
Foxblood
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Here's what mtr gave me in Sabayon. http://imgur.com/xndnY92 Here's what Win 7 ping gave:
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Users\Jim>ping 8.8.8.8

Pinging 8.8.8.8 with 32 bytes of data:
Reply from 8.8.8.8: bytes=32 time=10ms TTL=52
Reply from 8.8.8.8: bytes=32 time=8ms TTL=52
Reply from 8.8.8.8: bytes=32 time=8ms TTL=52
Reply from 8.8.8.8: bytes=32 time=9ms TTL=52

Ping statistics for 8.8.8.8:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 8ms, Maximum = 10ms, Average = 8ms

C:\Users\Jim>

Here's Arch: [jim@Nemesis ~]$ ping www.eircom.net
PING home.eircom.net (86.43.38.8) 56(84) bytes of data.
64 bytes from isp1.eircom.net (86.43.38.8): icmp_seq=1 ttl=56
time=3480 ms
64 bytes from isp1.eircom.net (86.43.38.8): icmp_seq=2 ttl=56
time=3598 ms
64 bytes from isp1.eircom.net (86.43.38.8): icmp_seq=9 ttl=56
time=3583 ms
64 bytes from isp1.eircom.net (86.43.38.8): icmp_seq=10 ttl=56
time=3396 ms
64 bytes from isp1.eircom.net (86.43.38.8): icmp_seq=11 ttl=56
time=3220 ms
^C64 bytes from 86.43.38.8: icmp_seq=13 ttl=56 time=3476 ms
64 bytes from 86.43.38.8: icmp_seq=16 ttl=56 time=3232 ms

--- home.eircom.net ping statistics ---
16 packets transmitted, 7 received, 56% packet loss, time 36494ms
rtt min/avg/max/mdev = 3220.521/3426.885/3598.107/141.763 ms, pipe 4
 
Old 03-02-2013, 06:35 PM   #4
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Have you tried pinging the same address with both to make it a proper test rather than just irrelevant numbers?
 
Old 03-02-2013, 07:02 PM   #5
Foxblood
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I have and I get the same result. Less than 10 ms with Win 7 and Sabayon, on the first drive and over 3500 ms with Arch on the second.
 
Old 03-02-2013, 07:07 PM   #6
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Might have saved some time to have posted proper results...
Anyhow, the next step I would try is running
Code:
traceroute 8.8.8.8
from both Linuxs.
 
Old 03-02-2013, 07:34 PM   #7
Foxblood
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Arch: jim@Athena ~ $ traceroute 8.8.8.8
traceroute to 8.8.8.8 (8.8.8.8), 30 hops max, 60 byte packets
1 * * *
2 109.255.254.29 (109.255.254.29) 9.944 ms 10.144 ms 10.418 ms
3 84.116.238.70 (84.116.238.70) 10.836 ms 10.963 ms 12.653 ms
4 213.46.165.142 (213.46.165.142) 12.767 ms 12.896 ms 13.210 ms
5 209.85.252.198 (209.85.252.198) 13.658 ms 15.799 ms 209.85.252.196 (209.85.252.196) 15.478 ms
6 209.85.253.201 (209.85.253.201) 16.087 ms 8.717 ms 209.85.253.203 (209.85.253.203) 8.679 ms
7 * * *
8 google-public-dns-a.google.com (8.8.8.8) 9.945 ms 9.565 ms 11.353 ms

Sabayon: jim@Athena ~ $ traceroute 8.8.8.8
traceroute to 8.8.8.8 (8.8.8.8), 30 hops max, 60 byte packets
1 * * *
2 109.255.254.29 (109.255.254.29) 8.679 ms 9.046 ms 9.429 ms
3 84.116.238.70 (84.116.238.70) 10.677 ms 11.026 ms 11.357 ms
4 213.46.165.142 (213.46.165.142) 11.681 ms 12.031 ms 13.513 ms
5 209.85.252.198 (209.85.252.198) 14.554 ms 14.206 ms 209.85.252.196 (209.85.252.196) 13.838 ms
6 209.85.253.201 (209.85.253.201) 16.546 ms 209.85.253.125 (209.85.253.125) 7.602 ms 209.85.253.203 (209.85.253.203) 9.599 ms
7 * * *
8 google-public-dns-a.google.com (8.8.8.8) 9.910 ms 9.398 ms 10.455 ms
 
Old 03-02-2013, 07:35 PM   #8
Foxblood
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Apologies, Arch: [jim@Nemesis ~]$ traceroute 8.8.8.8
traceroute to 8.8.8.8 (8.8.8.8), 30 hops max, 60 byte packets
1 * * *
2 109.255.254.29 (109.255.254.29) 3932.377 ms 3932.566 ms
3932.827 ms
3 * * *
4 * 213.46.165.142 (213.46.165.142) 3933.009 ms *
5 * 209.85.252.196 (209.85.252.196) 3933.250 ms *
6 * 209.85.253.127 (209.85.253.127) 3381.529 ms 209.85.253.201
(209.85.253.201) 3382.208 ms
7 * * *
8 google-public-dns-a.google.com (8.8.8.8) 3893.067 ms 3894.338 ms
3894.420 ms
 
Old 03-02-2013, 07:50 PM   #9
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How are you connected to the internet? The missing first entry looks odd to me but I'll admit I don't run traceroutes often.
 
Old 03-02-2013, 08:12 PM   #10
Foxblood
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Not sure what exactly you require. I have a 25 Meg fibre connection.

---------- Post added 03-03-13 at 02:12 AM ----------

jim@Athena ~ $ ifconfig
enp0s25: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether 00:25:11:a2:13:58 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 20 memory 0xfcfe0000-fd000000

lo: flags=73<UP,LOOPBACK,RUNNING> mtu 16436
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 0 (Local Loopback)
RX packets 2080 bytes 669114 (653.4 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 2080 bytes 669114 (653.4 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

wlp4s2: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.0.11 netmask 255.255.255.0 broadcast 192.168.0.255
inet6 fe80::72f1:a1ff:fe47:aa6f prefixlen 64 scopeid 0x20<link>
ether 70:f1:a1:47:aa:6f txqueuelen 1000 (Ethernet)
RX packets 4842 bytes 4022932 (3.8 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 4493 bytes 917076 (895.5 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
 
Old 03-03-2013, 07:29 PM   #11
jpollard
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It looks like a local routing error to me. Try showing what is in "netstat -rn" for each of the systems.
 
  


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