Hi, > -----Original Message----- > From: 'Sebastian Andrzej Siewior' <bigeasy@xxxxxxxxxxxxx> > Sent: Tuesday, November 16, 2021 6:43 PM > To: Vlastimil Babka <vbabka@xxxxxxx> > Cc: Chanho Park <chanho61.park@xxxxxxxxxxx>; linux-rt- > users@xxxxxxxxxxxxxxx; 'Thomas Gleixner' <tglx@xxxxxxxxxxxxx> > Subject: Re: hackbench score comparison between 5.10.75-rt47 and 5.14.14- > rt21 > > On 2021-11-16 10:37:22 [+0100], Vlastimil Babka wrote: > > On 11/12/21 15:00, 'Sebastian Andrzej Siewior' wrote: > > > On 2021-11-05 10:41:40 [+0900], Chanho Park wrote: > > >> Hi, > > > Hi, > > > > > >> I checked the same test on my aarch64 target. I'll do more > > >> realistic benchmark such as compile bench. > > >> > > >> <5.10.73-rt54 aarch64> > > >> root@euto-v9-sadk:~# hackbench -l 10000 > > >> Time: 24.994 > > >> > > >> <5.15.0-rt17 aarch64 w/o CONFIG_SLUB_CPU_PARTIAL> > > >> root@euto-v9-sadk:~# hackbench -l 10000 > > >> Time: 31.372 > > >> > > >> <5.15.0-rt17 aarch64 w/ CONFIG_SLUB_CPU_PARTIAL> > > >> root@euto-v9-sadk:~# hackbench -l 10000 > > >> Time: 35.269 > > > > > > The last two are equal, is that on purporse? > > > > I see the first of last two is without SLUB_CPU_PARTIAL and the second > > with SLUB_CPU_PARTIAL, so not equal? > > indeed. I didn't notice the missing o. Thanks!. Sorry for this confusion. > > > > Any feedback on v5.14-rc3-rt1 and v5.14-rc3-rt2? v5.13-rt1 should be > > > identical to you 5.10 numbers. I got below value on v5.14-rc3-rt1. <5.14.0-rc3-rt1 aarch64> Time: 35.948 Unfortunately, I've got below panic on v5.13-rt1. I stacked same patches for my board both v5.13-rt1 and v514-rc3-rt1. [ 0.112294] Freeing unused kernel memory: 5440K [ 0.131064] Run /sbin/init as init process [ 0.137371] ------------[ cut here ]------------ [ 0.137373] WARNING: CPU: 7 PID: 1 at arch/arm64/kernel/fpsimd.c:286 task_fpsimd_load+0x98/0xc0 [ 0.137381] Modules linked in: [ 0.137385] CPU: 7 PID: 1 Comm: init Not tainted 5.13.0-rt1-00032-gdee4765ed8ff #317 [ 0.137388] Hardware name: Samsung ExynosAuto v9 SADK board (DT) [ 0.137389] pstate: 40400009 (nZcv daif +PAN -UAO -TCO BTYPE=--) [ 0.137392] pc : task_fpsimd_load+0x98/0xc0 [ 0.137394] lr : task_fpsimd_load+0x18/0xc0 [ 0.137396] sp : ffff80001004bd60 [ 0.137397] x29: ffff80001004bd60 x28: ffff000800098000 x27: 0000000000000000 [ 0.137400] x26: 0000000000000000 x25: 0000000000000000 x24: 0000000045585401 [ 0.137402] x23: 0000000000000000 x22: ffff0008000986d8 x21: ffff000800098000 [ 0.137405] x20: ffff80001004beb0 x19: 0000000000000008 x18: 0000000000000014 [ 0.137408] x17: 00000000ccf04c01 x16: 0000000027fe4405 x15: 00000000083da15a [ 0.137411] x14: 0000000000000000 x13: 0000ffffd305cbf8 x12: 000000000000000f [ 0.137414] x11: 0000ffffd305cfed x10: 000000000000001f x9 : 0000000000000000 [ 0.137416] x8 : ffff80001004c000 x7 : 0000000000000000 x6 : 0000000000000001 [ 0.137418] x5 : 0000000080080007 x4 : 0000000000000000 x3 : 0000000000000001 [ 0.137421] x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000 [ 0.137424] Call trace: [ 0.137425] task_fpsimd_load+0x98/0xc0 [ 0.137427] fpsimd_restore_current_state+0x78/0xac [ 0.137430] do_notify_resume+0x10c/0x1300 [ 0.137434] work_pending+0xc/0x5f8 [ 0.137436] ---[ end trace 0000000000000002 ]--- Best Regards, Chanho Park
