[Discuss] Next AMD FX-8120 update

[markw at mohawksoft.com (markw at mohawksoft.com)]

Here is an output from sysbench:

FX-8120:
markw at snoopy:~$ sysbench --test=cpu --cpu-max-prime=20000 --num-threads=8 run
sysbench 0.4.12:  multi-threaded system evaluation benchmark

Running the test with following options:
Number of threads: 8

Doing CPU performance benchmark

Threads started!
Done.

Maximum prime number checked in CPU test: 20000


Test execution summary:
    total time:                          3.2178s
    total number of events:              10000
    total time taken by event execution: 25.7120
    per-request statistics:
         min:                                  2.23ms
         avg:                                  2.57ms
         max:                                  4.94ms
         approx.  95 percentile:               2.71ms

Threads fairness:
    events (avg/stddev):           1250.0000/1.87
    execution time (avg/stddev):   3.2140/0.00

AMD Phenom(tm) II X4 925 Processor
markw at huey:~$ sysbench --test=cpu --cpu-max-prime=20000 --num-threads=4 run
sysbench 0.4.10:  multi-threaded system evaluation benchmark

Running the test with following options:
Number of threads: 4

Doing CPU performance benchmark

Threads started!
Done.

Maximum prime number checked in CPU test: 20000


Test execution summary:
    total time:                          8.3527s
    total number of events:              10000
    total time taken by event execution: 33.4005
    per-request statistics:
         min:                                  3.28ms
         avg:                                  3.34ms
         max:                                 10.62ms
         approx.  95 percentile:               3.35ms

Threads fairness:
    events (avg/stddev):           2500.0000/35.81
    execution time (avg/stddev):   8.3501/0.00



> I finally got my AMD FX-8120 8 core system and have migrated to it. My old
> system, an AMD Athlon Dual Core, 8G RAM is now powered off waiting for a
> new job. My initial problem was a bad motherboard and my biggest obstacle
> to migration was wife and family and the responsibilities there of.
>
> So, quick summary:
> AMD FX-8120 8 core CPU
> 16 Gig RAM
> 1TB Boot drive (new)
> 1.5TB Data drive (removed from previous machine)
> Ubuntu 12.04
>
> My first impression was that it is not much faster than the old Dual Core
> Athlon when running a single task, but that turned out to be false. It
> does seem faster than the previous machine. I only have anecdotal
> information.
>
> Does anyone know of a good Linux benchmark?
>
> At work we have IBM servers using XEON Westmere processors, running
> similar clock speeds, the inexpensive AMD calculated SHA1 hashes faster
> than the XEON. I was surprised.
>
> The big win, of course, is multiple processes and threads. With the extra
> RAM, I am able to create good sized virtual machines with multiple CPUs.
>
> The processor itself is interesting. It isn't quite "8" true processors,
> but it isn't quite as useless as Intel's "Hyperthreaded" cores either. I
> will need to find time time to really test it.
>
>
>
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