A cikin tushen lambar da aka samar da zuciyar a kai Linux 7.0, an ɗauki wasu canje-canje waɗanda, a lokacin gwajin damuwa akan hanyar sadarwa ta gigabit 100, sun ba da damar ƙaruwa da kashi 12% a cikin aikin sarrafa fakitin UDP mai shigowa. An aiwatar da ingantawa ta hanyar haɗa ayyuka biyu da hannu. An lura cewa ana iya kiran aikin timecounter_cyc2time() ga kowane fakiti mai shigowa, tunda ƙa'idojin zamani suna buƙatar lissafin lokacin isowar fakitin. Saboda haka, akan lodawa uwar garke Ana iya kiran aikin timecounter_cyc2time() fiye da sau miliyan 100 a cikin daƙiƙa ɗaya.
A wannan yanayin, ingantattun na'urori masu tarawa ta atomatik kamar FDO (Feedback Directed Optimization), LTO (Link Time Optimization), da PGO (Profile Guided Optimization) sun kasa gano ɓangaren lambar zafi kuma sun yi watsi da shi, a bayyane yake saboda ana isar da direbobin katin cibiyar sadarwa azaman na'urori daban-daban. Duk da haka, faɗaɗa aikin da hannu a layi ya haifar da babban riba mai kyau.
source: budenet.ru
