Processor : ARMv7 Processor rev 0 (v7l)
processor : 0
BogoMIPS : 1992.29
processor : 1
BogoMIPS : 1992.29
processor : 2
BogoMIPS : 1992.29
processor : 3
BogoMIPS : 1992.29
Features : swp half thumb fastmult vfp edsp neon vfpv3 tls
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x3
CPU part : 0xc09
CPU revision : 0
Hardware : ODROID-X
Revision : 0000
Serial : 0000000000000000
tinymembench v0.2 (simple benchmark for memory throughput and latency)
==========================================================================
== Memory bandwidth tests ==
== ==
== Note 1: 1MB = 1000000 bytes ==
== Note 2: Results for 'copy' tests show how many bytes can be ==
== copied per second (adding together read and writen ==
== bytes would have provided twice higher numbers) ==
== Note 3: 2-pass copy means that we are using a small temporary buffer ==
== to first fetch data into it, and only then write it to the ==
== destination (source -> L1 cache, L1 cache -> destination) ==
== Note 4: If sample standard deviation exceeds 0.1%, it is shown in ==
== brackets ==
==========================================================================
C copy backwards : 220.3 MB/s (0.4%)
C copy : 870.2 MB/s
C copy prefetched (32 bytes step) : 695.6 MB/s
C copy prefetched (64 bytes step) : 696.4 MB/s (0.9%)
C 2-pass copy : 712.3 MB/s (0.2%)
C 2-pass copy prefetched (32 bytes step) : 660.9 MB/s
C 2-pass copy prefetched (64 bytes step) : 666.3 MB/s
C fill : 2604.8 MB/s
---
standard memcpy : 945.9 MB/s
standard memset : 2604.8 MB/s
---
NEON read : 1553.5 MB/s
NEON read prefetched (32 bytes step) : 1744.5 MB/s
NEON read prefetched (64 bytes step) : 1900.3 MB/s
NEON copy : 1013.3 MB/s
NEON copy prefetched (32 bytes step) : 958.2 MB/s
NEON copy prefetched (64 bytes step) : 1140.8 MB/s
NEON unrolled copy : 1034.1 MB/s
NEON unrolled copy prefetched (32 bytes step) : 956.4 MB/s
NEON unrolled copy prefetched (64 bytes step) : 1146.1 MB/s
NEON copy backwards : 210.7 MB/s
NEON copy backwards prefetched (32 bytes step) : 703.1 MB/s
NEON copy backwards prefetched (64 bytes step) : 754.9 MB/s
NEON 2-pass copy : 746.4 MB/s
NEON 2-pass copy prefetched (32 bytes step) : 847.8 MB/s
NEON 2-pass copy prefetched (64 bytes step) : 907.1 MB/s
NEON unrolled 2-pass copy : 757.1 MB/s
NEON unrolled 2-pass copy prefetched (32 bytes step) : 845.6 MB/s
NEON unrolled 2-pass copy prefetched (64 bytes step) : 932.4 MB/s
NEON fill : 2603.7 MB/s
NEON fill backwards : 2597.3 MB/s
ARM fill (STRD) : 2604.7 MB/s
ARM fill (STM with 8 registers) : 2605.9 MB/s
ARM fill (STM with 4 registers) : 2605.4 MB/s
ARM copy prefetched (incr pld) : 956.5 MB/s
ARM copy prefetched (wrap pld) : 956.8 MB/s
ARM 2-pass copy prefetched (incr pld) : 899.2 MB/s
ARM 2-pass copy prefetched (wrap pld) : 899.2 MB/s
==========================================================================
== Memory latency test ==
== ==
== Average time is measured for random memory accesses in the buffers ==
== of different sizes. The larger is the buffer, the more significant ==
== are relative contributions of TLB, L1/L2 cache misses and SDRAM ==
== accesses. For extremely large buffer sizes we are expecting to see ==
== page table walk with total 3 requests to SDRAM for almost every ==
== memory access (though 64MiB is not large enough to experience this ==
== effect to its fullest). ==
== ==
== Note 1: All the numbers are representing extra time, which needs to ==
== be added to L1 cache latency. The cycle timings for L1 cache ==
== latency can be usually found in the processor documentation. ==
== Note 1: Dual random read means that we are simultaneously performing ==
== two independent memory accesses at a time. In the case if ==
== the memory subsystem can't handle multiple outstanding ==
== requests, dual random read has the same timings as two ==
== single reads performed one after another. ==
==========================================================================
block size : read access time (single random read / dual random read)
2 : 0.1 ns / 0.0 ns
4 : 0.0 ns / 0.0 ns
8 : 0.0 ns / 0.0 ns
16 : 0.0 ns / 0.0 ns
32 : 0.0 ns / 0.0 ns
64 : 0.0 ns / 0.0 ns
128 : 0.0 ns / 0.0 ns
256 : 0.1 ns / 0.0 ns
512 : 0.1 ns / 0.0 ns
1024 : 0.0 ns / 0.0 ns
2048 : 0.0 ns / 0.0 ns
4096 : 0.0 ns / 0.0 ns
8192 : 0.0 ns / 0.0 ns
16384 : 0.0 ns / 0.0 ns
32768 : 0.0 ns / 0.0 ns
65536 : 6.4 ns / 10.4 ns
131072 : 9.6 ns / 13.4 ns
262144 : 13.5 ns / 18.0 ns
524288 : 15.5 ns / 19.9 ns
1048576 : 28.3 ns / 42.2 ns
2097152 : 81.7 ns / 124.3 ns
4194304 : 113.0 ns / 156.7 ns
8388608 : 130.8 ns / 172.6 ns
16777216 : 142.8 ns / 186.1 ns
33554432 : 152.7 ns / 200.8 ns
67108864 : 163.1 ns / 219.0 ns