Alpha software: FOSSbench scores have not yet been tested to be 100% accurate.
FOSSbench

Individual benchmark run

Intel(R) Xeon(R) CPU L5520 @ 2.27GHz

Intel(R) Xeon(R) CPU L5520 @ 2.27GHz · tested Jul 21, 2026, 1:14 AM · uploaded by @nova

Admin reviewed · included in the processor average

C score30,667ASM score: 26,273

System information

Processor
Intel(R) Xeon(R) CPU L5520 @ 2.27GHz
Computer model
Intel(R) Xeon(R) CPU L5520 @ 2.27GHz
Architecture
x86-64
Physical cores reported by run
8
Hardware threads reported by run
16
L1 cache
64 MB
L2 cache
256 MB
L3 cache
8,192 MB
Memory
24,066 MB
Operating system
Debian GNU/Linux 13 (trixie)
Kernel
Linux 7.0.14-4-pve
Compiler
GCC 14.2.0
FOSSbench version
0.4.0
Total test time
1 min 18 sec

Score summary

C multi-core30,667
C single-core4,922
ASM multi-core26,273
ASM single-core3,814

Test environment

Background monitoring
Available
Average background CPU use
0.7%
Peak background CPU use
4.2%
Available memory before test
21,043 MB
Running processes
427
Activity sample duration
10 seconds

Individual workload results

WorkloadRunMeasured performanceRaw throughputScoreElapsedIterationsThreadsChecksum
Native Integer Mathcommon 32-bit multiply/add/rotate mix10% of overall scoreMulti-core29,982.4 Mops/s29,982.4 million work units/sec97,1560.47 seconds5451636325925296
Single-core2,593.97 Mops/s2,593.97 million work units/sec8,4060.52 seconds84613977447158
Wide Integer Math64-bit ALU: imul, mul, div, bitops10% of overall scoreMulti-core23,058.69 Mops/s23,058.69 million work units/sec74,7200.49 seconds292161951778520539752064
Single-core2,179.65 Mops/s2,179.65 million work units/sec7,0630.53 seconds47716314237591289760210
Floating Point Mathdouble: mulsd/addsd, divsd, sqrtsd10% of overall scoreMulti-core3,029.03 Mops/s3,029.03 million work units/sec18,0080.5 seconds4716173672393171436512
Single-core415.35 Mops/s415.35 million work units/sec2,4690.52 seconds10814622540543000602686
Prime Numberssieve of Eratosthenes to 2M10% of overall scoreMulti-core378.43 Mcand/s378.43 million work units/sec4,6610.68 seconds81619063424
Single-core223.24 Mcand/s223.24 million work units/sec2,7490.51 seconds5718489181
Extended InstructionsSSE2: 128-bit integer + float10% of overall scoreMulti-core48,817.65 Mops/s48,817.65 million work units/sec74,2360.55 seconds5241615669351552
Single-core6,784.17 Mops/s6,784.17 million work units/sec10,3170.52 seconds1,11012977176747
CompressionLZ77 match finder, 4 MiB corpus10% of overall scoreMulti-core2,671.56 MB/s2,671.56 million work units/sec39,6370.5 seconds2016537592960
Single-core260.07 MB/s260.07 million work units/sec3,8590.53 seconds33155439274
EncryptionChaCha20, 20 rounds, 1 MiB10% of overall scoreMulti-core2,059.16 MB/s2,059.16 million work units/sec50,7180.49 seconds601647286313216
Single-core259.07 MB/s259.07 million work units/sec6,3810.52 seconds12912561824785
Physics512-body direct-sum gravity10% of overall scoreMulti-core606.31 Mpair/s606.31 million work units/sec9,6090.5 seconds7316242831072421132160
Single-core81.3 Mpair/s81.3 million work units/sec1,2880.54 seconds16614638127452906280950
Sortingheapsort, 1M uint3210% of overall scoreMulti-core745.87 Mkey-cmp/s745.87 million work units/sec20,5470.45 seconds11615164730354230573392
Single-core102.69 Mkey-cmp/s102.69 million work units/sec2,8290.61 seconds314406560160959951765
Memory Latencydependent-load pointer chase, 16 MiB0% of overall scoreMulti-core147.63 ns/access108.38 million work units/sec13,7190.44 seconds316139261288
Single-core72.36 ns/access13.82 million work units/sec1,7490.43 seconds615246208
Memory BandwidthSTREAM triad, 12 MiB working set per thread10% of overall scoreMulti-core13,113.6 MB/s13,113.6 million work units/sec40,9800.55 seconds361617155875328
Single-core7,158.75 MB/s7,158.75 million work units/sec22,3710.47 seconds26511064603408