Thomas Schneider <74cmo...@gmail.com> writes:
> Are you referring to this tool? > https://github.com/stefano-garzarella/qemu-boot-time > <https://github.com/stefano-garzarella/qemu-boot-time> No - just plain perf: perf record $QEMU $ARGS Then a "perf report" which will show you the hotspots, for example: 8.92% qemu-system-aar qemu-system-aarch64 [.] helper_lookup_tb_ptr 4.76% qemu-system-aar qemu-system-aarch64 [.] liveness_pass_1 3.69% qemu-system-aar qemu-system-aarch64 [.] tcg_gen_code 2.95% qemu-system-aar qemu-system-aarch64 [.] qht_lookup_custom 2.93% qemu-system-aar qemu-system-aarch64 [.] tcg_optimize 1.28% qemu-system-aar qemu-system-aarch64 [.] tcg_out_opc.isra.15 1.09% qemu-system-aar qemu-system-aarch64 [.] get_phys_addr_lpae 1.09% qemu-system-aar [kernel.kallsyms] [k] isolate_freepages_block 1.05% qemu-system-aar qemu-system-aarch64 [.] cpu_get_tb_cpu_state 0.98% qemu-system-aar [kernel.kallsyms] [k] do_syscall_64 0.94% qemu-system-aar qemu-system-aarch64 [.] tb_lookup_cmp 0.78% qemu-system-aar qemu-system-aarch64 [.] init_ts_info 0.73% qemu-system-aar qemu-system-aarch64 [.] tb_htable_lookup 0.73% qemu-system-aar qemu-system-aarch64 [.] tb_gen_code 0.73% qemu-system-aar qemu-system-aarch64 [.] tlb_set_page_with_attrs > > > Am 07.10.2020 um 13:00 schrieb Alex Bennée: >> perf to record your boot -- Alex Bennée
