$ wget https://mirrors.edge.kernel.org/pub/linux/kernel/tools/perf/v5.9.0/perf-5.9.0.tar.xz
--2021-03-21 15:40:30--  https://mirrors.edge.kernel.org/pub/linux/kernel/tools/perf/v5.9.0/perf-5.9.0.tar.xz
Resolving mirrors.edge.kernel.org (mirrors.edge.kernel.org)... 2604:1380:1:3600::1, 147.75.197.195
Connecting to mirrors.edge.kernel.org (mirrors.edge.kernel.org)|2604:1380:1:3600::1|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 1857268 (1.8M) [application/x-xz]
Saving to: 'perf-5.9.0.tar.xz'
perf-5.9.0.tar.xz                            100%[=============================================================================================>]   1.77M  8.85MB/s    in 0.2s
2021-03-21 15:40:30 (8.85 MB/s) - 'perf-5.9.0.tar.xz' saved [1857268/1857268]