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charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 02CAF1C000E X-Rspam-User: X-Stat-Signature: ed913zxcd47idpzx1xfaduircj1jez75 X-Spamd-Result: default: False [3.09 / 9.00]; SORBS_IRL_BL(3.00)[209.85.219.173:from]; BAD_REP_POLICIES(0.10)[]; RCVD_NO_TLS_LAST(0.10)[]; MIME_GOOD(-0.10)[text/plain]; BAYES_HAM(-0.01)[43.45%]; RCVD_COUNT_TWO(0.00)[2]; MIME_TRACE(0.00)[0:+]; FROM_EQ_ENVFROM(0.00)[]; DMARC_POLICY_ALLOW(0.00)[google.com,reject]; RCPT_COUNT_SEVEN(0.00)[11]; DKIM_TRACE(0.00)[google.com:+]; TO_MATCH_ENVRCPT_SOME(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[linux-mm@kvack.org]; R_DKIM_ALLOW(0.00)[google.com:s=20210112]; ARC_SIGNED(0.00)[hostedemail.com:s=arc-20220608:i=1]; FROM_HAS_DN(0.00)[]; R_SPF_ALLOW(0.00)[+ip4:209.85.128.0/17]; TO_DN_SOME(0.00)[]; ARC_NA(0.00)[] X-HE-Tag: 1670260719-987316 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Sun, Dec 4, 2022 at 9:56 PM kernel test robot wrot= e: > > Greeting, > > FYI, we noticed a -5.1% regression of unixbench.score due to commit: > [...] > 9cd6ffa60256e931 f1a7941243c102a44e8847e3b94 > ---------------- --------------------------- > %stddev %change %stddev > \ | \ > 7917 -5.1% 7509 unixbench.score What is unixbench.score? > 10485 -12.1% 9216 unixbench.time.maximum_resi= dent_set_size > 37236706 -5.1% 35324104 unixbench.time.minor_page_f= aults For above two, is negative change good or bad? > 0.98 =C4=85 20% +0.7 1.64 =C4=85 38% perf-profile.call= trace.cycles-pp.link_path_walk.path_openat.do_filp_open.do_sys_openat2.__x6= 4_sys_openat > 2.12 =C4=85 19% +0.8 2.96 =C4=85 13% perf-profile.call= trace.cycles-pp.handle_mm_fault.do_user_addr_fault.exc_page_fault.asm_exc_p= age_fault > 2.35 =C4=85 13% +0.9 3.28 =C4=85 13% perf-profile.call= trace.cycles-pp.__handle_mm_fault.handle_mm_fault.do_user_addr_fault.exc_pa= ge_fault.asm_exc_page_fault > 0.14 =C4=85 74% +0.4 0.55 =C4=85 32% perf-profile.chil= dren.cycles-pp.do_task_dead > 0.04 =C4=85223% +0.4 0.47 =C4=85 49% perf-profile.chil= dren.cycles-pp.__mmdrop Also how should I interpret the above perf-profiles?