Alrighty. The following are the Chariot results, summarized to the bare minimum (to conserve Anandtech's space), of the Hub vs Switch testing from this afternoon. There might be a few surprises, maybe not...
Edit: Complete test results
Edit#2: Jack's hub arrived, we'll do the rest of the tests in the next day or two (6/19-6/20). Jack's hub is a four port, we're gonna test it, then cascade it to the other four port hub & try that too.
JackMDS' 8 port hub has not arrived, when it shows up, we'll expand the test as soon as possible. We were limited to a four port 10/100 hub, and one port had to be the Chariot console (total three machines under test).
The "Failed" tag means the test failed to complete properly due to hardware limitations of the device under test (which happened to be a switch, the hub hasn't done this test yet, but will be tested when possible).
*********
All values are AVERAGE throughput, in Megabits per second. All hub tests were done at 100 Mbps, Half Duplex. All switch tests were done at 100 Mbps FULL DUPLEX (we were running short on time).
The last number in the column is the total throughput (AVERAGE).
*********
Workstation to Server, hub, 1 stream, TCP :89.520
Workstation to Server, hub, 1 stream, UDP :35.301
Workstation to Server, switch, one stream, TCP :94.134
Workstation to Server, switch, one stream, UDP :60.780
Workstation to server, hub, two streams, TCP
29.677
59.757
-------
86.317
Workstation to server, hub, two streams, UDP
36.796
45.417
-------
81.458
Server to Workstation, Hub, two streams, TCP
44.761
44.835
-------
89.492
Server to Workstation, Hub, two streams, UDP
Average (Mbps)
45.250
45.531
-------
89.701
Workstation to server, switch, two streams, TCP
47.520
47.432
-------
94.835
Workstation to server, switch, two streams, UDP
36.429
36.554
------
72.838
Server to workstation, switch, two streams, TCP
47.443
47.491
------
94.851
Server to workstation, switch, two streams, TCP
46.789
47.792
------
93.547
Server to workstastion, Switch, two streams to the server plus one stream WS to WS, TCP
47.482
47.444
92.534
------
186.302
Server to workstastion, Switch, two streams to the server plus one stream WS to WS, UDP
47.412
47.550
57.873
------
152.015
Two Workstations to server plus one stream workstation to workstation, switch, TCP
47.497
47.649
43.836
--------
138.555
Two Workstations to server plus one stream workstation to workstation, switch, UDP
36.405
36.543
57.700
-------
130.116
Workstation to server, switch, three streams, TCP
(Failed)
Workstation to Server, switch, three streams, UDP
31.102
31.099
29.668
-------
91.666
Server to Workstation, switch, three streams, TCP
(Failed)
Server to workstation, switch, three streams, UDP
31.709
32.157
31.782
-------
93.769
******* End (for now) ******
SmartBits: (Summary)
With four streams (four in, four out)the eight port switch transmitted 100% of the generated traffic, at or near "wire speed," with latency figures comparable to many/most/all "commercial" switches.
Throughput was not tested on the hub. The Smartbits "doesn't do" throughput testing on hubs (results show up as 140%+ throughput). Hubs were tested for latency and packet drop only.
SO, there ya go ........
Scott
Thanks to Doug, Eric and Dave for helping.
Edit: Complete test results
Edit#2: Jack's hub arrived, we'll do the rest of the tests in the next day or two (6/19-6/20). Jack's hub is a four port, we're gonna test it, then cascade it to the other four port hub & try that too.
JackMDS' 8 port hub has not arrived, when it shows up, we'll expand the test as soon as possible. We were limited to a four port 10/100 hub, and one port had to be the Chariot console (total three machines under test).
The "Failed" tag means the test failed to complete properly due to hardware limitations of the device under test (which happened to be a switch, the hub hasn't done this test yet, but will be tested when possible).
*********
All values are AVERAGE throughput, in Megabits per second. All hub tests were done at 100 Mbps, Half Duplex. All switch tests were done at 100 Mbps FULL DUPLEX (we were running short on time).
The last number in the column is the total throughput (AVERAGE).
*********
Workstation to Server, hub, 1 stream, TCP :89.520
Workstation to Server, hub, 1 stream, UDP :35.301
Workstation to Server, switch, one stream, TCP :94.134
Workstation to Server, switch, one stream, UDP :60.780
Workstation to server, hub, two streams, TCP
29.677
59.757
-------
86.317
Workstation to server, hub, two streams, UDP
36.796
45.417
-------
81.458
Server to Workstation, Hub, two streams, TCP
44.761
44.835
-------
89.492
Server to Workstation, Hub, two streams, UDP
Average (Mbps)
45.250
45.531
-------
89.701
Workstation to server, switch, two streams, TCP
47.520
47.432
-------
94.835
Workstation to server, switch, two streams, UDP
36.429
36.554
------
72.838
Server to workstation, switch, two streams, TCP
47.443
47.491
------
94.851
Server to workstation, switch, two streams, TCP
46.789
47.792
------
93.547
Server to workstastion, Switch, two streams to the server plus one stream WS to WS, TCP
47.482
47.444
92.534
------
186.302
Server to workstastion, Switch, two streams to the server plus one stream WS to WS, UDP
47.412
47.550
57.873
------
152.015
Two Workstations to server plus one stream workstation to workstation, switch, TCP
47.497
47.649
43.836
--------
138.555
Two Workstations to server plus one stream workstation to workstation, switch, UDP
36.405
36.543
57.700
-------
130.116
Workstation to server, switch, three streams, TCP
(Failed)
Workstation to Server, switch, three streams, UDP
31.102
31.099
29.668
-------
91.666
Server to Workstation, switch, three streams, TCP
(Failed)
Server to workstation, switch, three streams, UDP
31.709
32.157
31.782
-------
93.769
******* End (for now) ******
SmartBits: (Summary)
With four streams (four in, four out)the eight port switch transmitted 100% of the generated traffic, at or near "wire speed," with latency figures comparable to many/most/all "commercial" switches.
Throughput was not tested on the hub. The Smartbits "doesn't do" throughput testing on hubs (results show up as 140%+ throughput). Hubs were tested for latency and packet drop only.
SO, there ya go ........
Scott
Thanks to Doug, Eric and Dave for helping.