Here’s the output of lscpu on an AGX Xavier running 5.1.1. I have noticed that my applications have much higher cache miss rates, and hence lower CPU performance, than on Jetpack 4, and it seems like it might be related to this issue.
Architecture: aarch64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 8 On-line CPU(s) list: 0-7 Thread(s) per core: 1 Core(s) per socket: 2 Socket(s): 4 Vendor ID: Nvidia Model: 0 Model name: ARMv8 Processor rev 0 (v8l) Stepping: 0x0 CPU max MHz: 2265.6001 CPU min MHz: 115.2000 BogoMIPS: 62.50 L1d cache: 512 KiB L1i cache: 1 MiB L2 cache: 8 MiB L3 cache: 4 MiB Vulnerability Itlb multihit: Not affected Vulnerability L1tf: Not affected Vulnerability Mds: Not affected Vulnerability Meltdown: Not affected Vulnerability Spec store bypass: Not affected Vulnerability Spectre v1: Mitigation; __user pointer sanitization Vulnerability Spectre v2: Mitigation; Branch predictor hardening Vulnerability Srbds: Not affected Vulnerability Tsx async abort: Not affected Flags: fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm dcpop
On my previous Jetpack 4.3 builds, the cache sizes are reported correctly
L1d cache: 64K L1i cache: 128K L2 cache: 2048K L3 cache: 4096K