You have to take the benchmarks with a grain of salt, as itīs a synthetic benchmark but the results found by Robert Milkowski are interesting:
16-core Intel System vs. Niagara-2. Some results are expected. For tasks without threads, the T2 is slower, but as soon as the thread count rises above 64, the T2 gets faster than the Xeon box.
But there is more: The CPU benchmark for 16, 32 and 64 threads on XEON have almost the same outcome (at least on the diagram). As the Xeon configuration has 16 cores this can be explained. The 128 threads benchmark is slower than the 64 one on Xeon. It looks like the massive thread switching takes itīs toll here. Albeit the T2 has 16 piplines as well, the system doesnīt saturate at 16 threads, the total time in sysbench decreases at least until 64 threads (iīm not sure about 128 threads).
The memory benchmark show a huge advantage for the T2. The Xeon system saturates at 4 GB/s, the T2 delivers up to 17 GB/s. Itīs interesting, that that the Xeon benchmark drops sharply at two parallel threads to regain the 4 GB/s at 16 Threads.
The last benchmark was an thread benchmark: Starting with 32 threads, the N2 is faster than the quad xeon. It would be interesting to see the benchmark with 18 or 20 threads (thus larger than the amout of existent cores).
Robert Milkowski summarizes it quite well:
Quick conclusion is that Niagara-2 box can rival 4-CPU 4-core (16 cores in total) Intel boxes if your application can utilize all these cores. Sometimes it's much faster - especially if you need to access lots of memory.
PS: The dual- and quadsocket VF are not so far away
Comments
Tue, 07.10.2008 13:35
Heute morgen auf dem Weg zur A rbeit lief im Radio das Lied A lleinesein. Die Stimme klingt nach Wolfsheim aber der [...]
Tue, 07.10.2008 13:03
Jo ... das ist enterprise-grad e ... es soll verhindern, das die Daten auf keinen Fall und unter keinen Umstaenden [...]
Tue, 07.10.2008 11:49
ob die Datenhalde eines typisc hen ct-Lesers schneller werden wuerde, wenn man sZIL und L2A RC auf nen USB-Stick leg [...]
Tue, 07.10.2008 11:48
da steht auch das ZFS nicht si nnhaft erkennt wenn man zwei P latten aus dem Raid-Verbund zi eht (hang forever+reboot [...]
Tue, 07.10.2008 11:43
Soll ja Leute geben, die c0t0d 0s0.org nicht lesen