On 2018-01-23 08:27, Blair Bethwaite wrote:
> Firstly, the OP's premise in asking, "Or should there be a differnce
> of 10x", is fundamentally incorrect. Greater bandwidth does not mean
> lower latency, though the latter almost always results in the former.
> Unfortunately, changing the speed of
Firstly, the OP's premise in asking, "Or should there be a differnce
of 10x", is fundamentally incorrect. Greater bandwidth does not mean
lower latency, though the latter almost always results in the former.
Unfortunately, changing the speed of light remains a difficult
engineering challenge :-).
ping -c 10 -f 10.0.1.12
Intel X710-DA2 -> Switch -> Intel X710-DA2:
--- 172.16.16.3 ping statistics ---
10 packets transmitted, 10 received, 0% packet loss, time 1932ms
rtt min/avg/max/mdev = 0.013/0.014/0.131/0.004 ms, ipg/ewma 0.019/0.014 ms
k
25Gbe network. Servers have ConnectX-4 Pro, across a router, since L2 is
terminated as the ToR:
10 packets transmitted, 10 received, 0% packet loss, time 1926ms
rtt min/avg/max/mdev = 0.013/0.013/0.205/0.004 ms, ipg/ewma 0.019/0.014 ms
Warren Wang
On 1/22/18, 4:06 PM, "ceph-users on
ping -c 10 -f
ping -M do -s 8972
10Gb ConnectX-3 Pro, DAC + Vlan
rtt min/avg/max/mdev = 0.010/0.013/0.200/0.003 ms, ipg/ewma 0.025/0.014
ms
8980 bytes from 10.0.0.11: icmp_seq=3 ttl=64 time=0.144 ms
8980 bytes from 10.0.0.11: icmp_seq=4 ttl=64 time=0.205 ms
8980 bytes from 10.0.0.11:
Anyone with 25G ethernet willing to do the test? Would love to see what the
latency figures are for that.
From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of Maged
Mokhtar
Sent: 22 January 2018 11:28
To: ceph-users@lists.ceph.com
Subject: Re: [ceph-users] What is the
On 2018-01-22 08:39, Wido den Hollander wrote:
> On 01/20/2018 02:02 PM, Marc Roos wrote:
>
>> If I test my connections with sockperf via a 1Gbit switch I get around
>> 25usec, when I test the 10Gbit connection via the switch I have around
>> 12usec is that normal? Or should there be a
On 01/20/2018 02:02 PM, Marc Roos wrote:
If I test my connections with sockperf via a 1Gbit switch I get around
25usec, when I test the 10Gbit connection via the switch I have around
12usec is that normal? Or should there be a differnce of 10x.
No, that's normal.
Tests with 8k ping
If I test my connections with sockperf via a 1Gbit switch I get around
25usec, when I test the 10Gbit connection via the switch I have around
12usec is that normal? Or should there be a differnce of 10x.
sockperf ping-pong
sockperf: Warmup stage (sending a few dummy messages)...
sockperf:
