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More AMD FX-4100, FX-8150 Bulldozer Linux Details


Published on 16 October 2011 09:35 AM EDT
Written by Michael Larabel in AMD

On Friday some benchmarks of the AMD FX-8150 Bulldozer on Linux were shared, thanks to an early adopter running some benchmarks under Gentoo and uploading them to OpenBenchmarking.org. But there's more to come.

While I don't have any physical access to AMD Bulldozer systems at this time, a Phoronix reader and early AMD customer was kind enough to offer remote access into his new system this weekend. Many thanks go out to Daniel Newkirk. This Bulldozer setup had a 3.60GHz quad-core AMD FX-4100 processor with 16GB of RAM and an SSD while running Ubuntu 11.04 on the Linux 2.6.38 kernel. Below is the /proc/cpuinfo for reference from the FX-4100 retail CPU.
processor : 3
vendor_id : AuthenticAMD
cpu family : 21
model : 1
model name : AMD FX(tm)-4100 Quad-Core Processor
stepping : 2
cpu MHz : 1400.000
cache size : 2048 KB
physical id : 0
siblings : 4
core id : 3
cpu cores : 2
apicid : 19
initial apicid : 3
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc extd_apicid aperfmperf pni pclmulqdq monitor ssse3 cx16 sse4_1 sse4_2 popcnt aes xsave avx lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs xop skinit wdt lwp fma4 nodeid_msr topoext arat cpb npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold
bogomips : 7224.27
TLB size : 1536 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 48 bits physical, 48 bits virtual
power management: ts ttp tm 100mhzsteps hwpstate [9]

From this system I've remotely run a variety of CPU tests using the Phoronix Test Suite on the FX-4100 Bulldozer. While I don't have the other matching components to his system to replicate a 1:1 comparison, I am now running results from close Sandy Bridge and Llano systems for reference using Ubuntu 11.04. These AMD FX-4100 Linux benchmarks should be out next week.

From the FX-4100 system I also facilitated a compiler comparison between GCC 4.5 and GCC 4.6. Those results are coming soon as well. Unfortunately due to the remote access and not wanting to make invasive changes to this reader's system, I wasn't able to do a Linux kernel comparison or with AMD's Bulldozer kernel patch that's said to improve the performance by several percentage points. I'm also optimistic on obtaining remote access to a FX-8150 Bulldozer system running Ubuntu 11.10 later in the next week.

Until then, many Phoronix readers have been running their own hardware comparisons against the Gentoo Linux results of the AMD FX-8150 Bulldozer system that was mentioned on Friday. With the Phoronix Test Suite it's simply a matter of running phoronix-test-suite benchmark 1110131-LI-BULLDOZER29 for the automated test download, installation, execution, and comparison.

Among the independent users facilitating comparisons against the FX-8150 results in the past two days are with an Intel Core i7 2820QM, AMD Phenom II X6 1090T, AMD Phenom II X2 550, AMD Athlon 64 X2 4800+, AMD Phenom II P920, AMD Athlon 64 X2 6000+, Intel Core 2 Quad Q9450, Intel Core i7 2600K, and Intel Core 2 Quad Q9550.

For those looking to facilitate a comparison of these results from the web-interface, simply click on the results via the "Compare Test Results" from the left-hand menu. Here's an OpenBenchmarking.org example that's comparing the AMD FX-8150 to some of the other user-supplied data.

I've also received some emails with users inquiring about interpreting the FX-8150 OpenBenchmarking.org Performance Classification data. To learn about OPC and other OpenBenchmarking.org features, see these SCALE slides (namely pages 4 and 5 for the OPC information) from the presentation earlier this year. There's also some other features being worked on too in order to improve usability and proper documentation of the platform's capabilities. (Feedback and other suggestions are also welcome.)

Until the AMD FX-4100 comparisons are finished, you can read about the AMD Trinity APU and also the AMD dual-Interlagos Bulldozer benchmarks under Linux.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
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