-- -proposed kernel testing -- ubuntu@helo:~$ uname -a Linux helo 4.15.0-39-generic #42-Ubuntu SMP Tue Oct 23 15:43:48 UTC 2018 aarch64 aarch64 aarch64 GNU/Linux ubuntu@helo:~$ ubuntu@helo:~$ apt policy linux-image-generic linux-image-generic: Installed: 4.15.0.39.41 Candidate: 4.15.0.39.41 Version table: *** 4.15.0.39.41 500 500 http://ports.ubuntu.com/ubuntu-ports bionic-proposed/main arm64 Packages 100 /var/lib/dpkg/status 4.15.0.38.40 500 500 http://ports.ubuntu.com/ubuntu-ports bionic-updates/main arm64 Packages 4.15.0.36.38 500 500 http://ports.ubuntu.com/ubuntu-ports bionic-security/main arm64 Packages 4.15.0.20.23 500 500 http://ports.ubuntu.com/ubuntu-ports bionic/main arm64 Packages ubuntu@helo:~$ ubuntu@helo:~$ perf list List of pre-defined events (to be used in -e): armv8_pmuv3_0/br_immed_retired/ [Kernel PMU event] armv8_pmuv3_0/br_mis_pred/ [Kernel PMU event] armv8_pmuv3_0/br_mis_pred_retired/ [Kernel PMU event] armv8_pmuv3_0/br_pred/ [Kernel PMU event] armv8_pmuv3_0/br_retired/ [Kernel PMU event] armv8_pmuv3_0/br_return_retired/ [Kernel PMU event] armv8_pmuv3_0/bus_access/ [Kernel PMU event] armv8_pmuv3_0/bus_cycles/ [Kernel PMU event] armv8_pmuv3_0/cid_write_retired/ [Kernel PMU event] armv8_pmuv3_0/cpu_cycles/ [Kernel PMU event] armv8_pmuv3_0/exc_return/ [Kernel PMU event] armv8_pmuv3_0/exc_taken/ [Kernel PMU event] armv8_pmuv3_0/inst_retired/ [Kernel PMU event] armv8_pmuv3_0/inst_spec/ [Kernel PMU event] armv8_pmuv3_0/l1d_cache/ [Kernel PMU event] armv8_pmuv3_0/l1d_cache_allocate/ [Kernel PMU event] armv8_pmuv3_0/l1d_cache_refill/ [Kernel PMU event] armv8_pmuv3_0/l1d_cache_wb/ [Kernel PMU event] armv8_pmuv3_0/l1d_tlb/ [Kernel PMU event] armv8_pmuv3_0/l1d_tlb_refill/ [Kernel PMU event] armv8_pmuv3_0/l1i_cache/ [Kernel PMU event] armv8_pmuv3_0/l1i_cache_refill/ [Kernel PMU event] armv8_pmuv3_0/l1i_tlb/ [Kernel PMU event] armv8_pmuv3_0/l1i_tlb_refill/ [Kernel PMU event] armv8_pmuv3_0/l2d_cache/ [Kernel PMU event] armv8_pmuv3_0/l2d_cache_allocate/ [Kernel PMU event] armv8_pmuv3_0/l2d_cache_refill/ [Kernel PMU event] armv8_pmuv3_0/l2d_cache_wb/ [Kernel PMU event] armv8_pmuv3_0/l2d_tlb/ [Kernel PMU event] armv8_pmuv3_0/l2d_tlb_refill/ [Kernel PMU event] armv8_pmuv3_0/ld_retired/ [Kernel PMU event] armv8_pmuv3_0/mem_access/ [Kernel PMU event] armv8_pmuv3_0/st_retired/ [Kernel PMU event] armv8_pmuv3_0/stall_backend/ [Kernel PMU event] armv8_pmuv3_0/stall_frontend/ [Kernel PMU event] armv8_pmuv3_0/sw_incr/ [Kernel PMU event] armv8_pmuv3_0/ttbr_write_retired/ [Kernel PMU event] armv8_pmuv3_0/unaligned_ldst_retired/ [Kernel PMU event] core imp def: bus_access_rd [Bus access read] bus_access_wr [Bus access write] exc_dabort [Exception taken, Data Abort and SError] exc_fiq [Exception taken, FIQ] exc_hvc [Exception taken, Hypervisor Call] exc_irq [Exception taken, IRQ] exc_pabort [Exception taken, Instruction Abort] exc_smc [Exception taken, Secure Monitor Call] exc_svc [Exception taken, Supervisor Call] exc_trap_dabort [Exception taken, Data Abort or SError not taken locally] exc_trap_fiq [Exception taken, FIQ not taken locally] exc_trap_irq [Exception taken, IRQ not taken locally] exc_trap_other [Exception taken, Other traps not taken locally] exc_trap_pabort [Exception taken, Instruction Abort not taken locally] exc_undef [Exception taken, Other synchronous] l1d_cache_inval [L1D cache invalidate] l1d_cache_rd [L1D cache access, read] l1d_cache_refill_inner [L1D cache refill, inner] l1d_cache_refill_outer [L1D cache refill, outer] l1d_cache_refill_rd [L1D cache refill, read] l1d_cache_refill_wr [L1D cache refill, write] l1d_cache_wb_clean [L1D cache Write-Back, cleaning and coherency] l1d_cache_wb_victim [L1D cache Write-Back, victim] l1d_cache_wr [L1D cache access, write] l1d_tlb_rd [L1D tlb access, read] l1d_tlb_refill_rd [L1D tlb refill, read] l1d_tlb_refill_wr [L1D tlb refill, write] l1d_tlb_wr [L1D tlb access, write] l2d_tlb_rd [L2D cache access, read] l2d_tlb_refill_rd [L2D cache refill, read] l2d_tlb_refill_wr [L2D cache refill, write] l2d_tlb_wr [L2D cache access, write] mem_access_rd [Data memory access, read] mem_access_wr [Data memory access, write] unaligned_ld_spec [Unaligned access, read] unaligned_ldst_spec [Unaligned access] unaligned_st_spec [Unaligned access, write] rNNN [Raw hardware event descrip cpu/t1=v1[,t2=v2,t3 ...]/modifier [Raw hardware event descrip (see 'man perf-list' on how to encode it) mem:[/len][:access] [Hardware breakpoint] ubuntu@helo:~$ ubuntu@helo:~$ sudo perf stat -e l1d_cache_refill_rd,l1d_cache_refill_wr,armv8_pmuv3_0/l1d_cache_refill/ stress-ng -c 2 -i 1 -m 1 --vm-bytes 128M -t 10s stress-ng: info: [6096] dispatching hogs: 2 cpu, 1 io, 1 vm stress-ng: info: [6096] successful run completed in 10.86s Performance counter stats for 'stress-ng -c 2 -i 1 -m 1 --vm-bytes 128M -t 10s': 215192996 l1d_cache_refill_rd 68057599 l1d_cache_refill_wr 283250595 armv8_pmuv3_0/l1d_cache_refill/ 11.080157375 seconds time elapsed ubuntu@helo:~$ ubuntu@helo:~$ sudo perf stat -e unaligned_ld_spec,unaligned_st_spec,unaligned_ldst_spec,mem_access_rd,mem_access_wr,armv8_pmuv3_0/mem_access/ stress-ng -c 2 -i 1 -m 1 --vm-bytes 128M -t 10s stress-ng: info: [6107] dispatching hogs: 2 cpu, 1 io, 1 vm stress-ng: info: [6107] successful run completed in 10.28s Performance counter stats for 'stress-ng -c 2 -i 1 -m 1 --vm-bytes 128M -t 10s': 2925792 unaligned_ld_spec 4271379 unaligned_st_spec 7197171 unaligned_ldst_spec 2748840198 mem_access_rd 2108536216 mem_access_wr 4857376384 armv8_pmuv3_0/mem_access/ 10.609944930 seconds time elapsed ubuntu@helo:~$