https://wiki.archlinux.org/title/CPU_frequency_scaling
https://www.intel.com/content/www/us/en/developer/tools/software-catalog/overview.html
https://www.intel.com/content/www/us/en/download/736633/intel-memory-latency-checker-intel-mlc.html
wget https://downloadmirror.intel.com/866182/mlc_v3.12.tgz tar xvf mlc_v3.12.tgz Linux/mlc |
Intel(R) Memory Latency Checker - v3.12
Measuring idle latencies for sequential access (in ns)...
Numa node
Numa node 0
0 144.6
Measuring Peak Injection Memory Bandwidths for the system
Bandwidths are in MB/sec (1 MB/sec = 1,000,000 Bytes/sec)
Using all the threads from each core if Hyper-threading is enabled
Using traffic with the following read-write ratios
ALL Reads : 78800.3
3:1 Reads-Writes : 75003.3
2:1 Reads-Writes : 74966.8
1:1 Reads-Writes : 75022.1
Stream-triad like: 73826.4
All NT writes : 75829.9
1:1 Read-NT write: 73326.7
Measuring Memory Bandwidths between nodes within system
Bandwidths are in MB/sec (1 MB/sec = 1,000,000 Bytes/sec)
Using all the threads from each core if Hyper-threading is enabled
Using Read-only traffic type
Numa node
Numa node 0
0 78808.7
Measuring Loaded Latencies for the system
Using all the threads from each core if Hyper-threading is enabled
Using Read-only traffic type
Inject Latency Bandwidth
Delay (ns) MB/sec
==========================
00000 276.72 78936.0
00002 277.12 78964.9
00008 276.93 78941.1
00015 243.31 78397.2
00050 204.42 75714.7
00100 190.78 73233.4
00200 156.82 55748.6
00300 150.16 39532.8
00400 147.61 30830.6
00500 144.69 25592.8
00700 141.62 19131.0
01000 139.33 13930.3
01300 138.64 11016.4
01700 137.85 8644.1
02500 137.44 6104.8
03500 137.59 4530.3
05000 137.64 3331.4
09000 138.39 2066.9
20000 139.72 1183.6
Measuring cache-to-cache transfer latency (in ns)...
Local Socket L2->L2 HIT latency 37.5
Local Socket L2->L2 HITM latency 39.6
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