According to the Loongson 2F website, the CPU should "Outperform 1GHz Pentium III".
I do not have access to a 1GHz PIII, so I used an Asus EeePc 701 for comparison. It has an Intel Celeron-M ULV 353 underclocked to 630 MHz. Taking these SuperPI benchmark results, which are probably best case for frequency scaling, would place the CPUs about equal (Pentium III 1 GHz at 130 sec., and Celeron-M 630 MHz at 126 sec.)
|Lemote Yeeloong 8089||Loongson 2F||800||512 KB||1 GB||Fedora 13|
|EeePc 701||Celeron-M ULV 353||630||512 KB||2 GB||Scientific Linux 6|
I used Fedora instead of Debian on the Lemote because it uses the MIPS n32 ABI, for potentially much better performance.
Stream TRIAD bandwidthStream results are rather bad:
bzip2 compressionAs an integer benchmark, I used bzip2 to decompress and compress the gcc 4.6.0 source tarball (71,579,535 bytes). Time is user time in seconds.
|Yeeloong||140.90||521.15||bzip 1.0.6, compiled with gcc 4.6.0 with default optimization|
Radiance renderingUsing Mark Stock's benchmark test. Unfortunately, on the Yeeloong,
-O3 -ffast-mathdelivered invalid results, so I had to compile with the flags listed below. I'll try to rerun this with a newer version of gcc, as this gives a big improvement on some platforms (AMD64, for example, but not on the Celeron-M).
|Yeeloong||17915||gcc 4.4.4||-march=native -O3 -fno-math-errno -funsafe-math-optimizations|
|EeePc||15884||gcc 4.7.0 20110501||-march=native -Ofast|
HintThe systems are almost identical at about 67 MQuips, but, as indicated by the Stream result, the Loongson is hampered by bad main memory and, apparently, L2 cache, performance.
2011-05-25 updated bzip2 results