大家好,我是tin,欢迎围观公号【看点代码再上班】,第一时间获取更多编程知识。
在Linux操作系统中,/proc 是一个虚拟的目录,它是系统内存的映射,我们可以通过直接访问这个目录来获取系统信息,例如我们可以使用 cat /proc/cpuinfo 查看CPU信息:
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27[root@VM_0_17_centos ~]# cat /proc/cpuinfo processor : 0 vendor_id : AuthenticAMD cpu family : 23 model : 49 model name : AMD EPYC 7K62 48-Core Processor stepping : 0 microcode : 0x1000065 cpu MHz : 2595.124 cache size : 512 KB physical id : 0 siblings : 1 core id : 0 cpu cores : 1 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm art rep_good nopl extd_apicid eagerfpu pni pclmulqdq ssse3 fma cx16 sse4_1 sse4_2 x2apic movbe popcnt aes xsave avx f16c rdrand hypervisor lahf_lm cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw topoext retpoline_amd ibpb vmmcall fsgsbase bmi1 avx2 smep bmi2 rdseed adx smap clflushopt sha_ni xsaveopt xsavec xgetbv1 arat bogomips : 5190.24 TLB size : 1024 4K pages clflush size : 64 cache_alignment : 64 address sizes : 48 bits physical, 48 bits virtual power management:
除此之外,在linux系统中还可以通过以下命令查看cpu缓存信息:
①查看缓存行大小 cat /sys/devices/system/cpu/cpu0/cache/index0/coherency_line_size
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2[root@VM_0_17_centos ~]# cat /sys/devices/system/cpu/cpu0/cache/index0/coherency_line_size 64
②查看一级缓存大小 cat /sys/devices/system/cpu/cpu0/cache/index0/size
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2[root@VM_0_17_centos ~]# cat /sys/devices/system/cpu/cpu0/cache/index0/size 32K
但是,在我们的mac系统则不能使用/proc目录,以上命令也就不适用于mac系统了。如要查看mac的系统信息,我们可以使用sysctl命令。
①查看cpu品牌信息 sysctl machdep.cpu.brand_string
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2ericli@EricdeMacBook-Air ~ % sysctl machdep.cpu.brand_string machdep.cpu.brand_string: Apple processor
②查看cpu核心数 sysctl hw.activecpu
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2ericli@EricdeMacBook-Air ~ % sysctl hw.activecpu hw.activecpu: 8
③查看cpu基本信息 system_profiler SPHardwareDataType
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13ericli@EricdeMacBook-Air ~ % system_profiler SPHardwareDataType Hardware: Hardware Overview: Model Name: MacBook Air Model Identifier: MacBookAir10,1 Chip: Apple M1 Total Number of Cores: 8 (4 performance and 4 efficiency) Memory: 8 GB System Firmware Version: 6723.50.2 Serial Number (system): FVFDT07YQ6L8 Hardware UUID: EA6CEC2F-8D4D-56AF-9DE0-D6D7D5B61491 Provisioning UDID: 00008103-000569AE36D2001E Activation Lock Status: Disabled
④查看cpu缓存行字节大小 sysctl hw.cachelinesize
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2ericli@EricdeMacBook-Air ~ % sysctl hw.cachelinesize hw.cachelinesize: 128
⑤查看一级数据缓存大小 sysctl hw.l1dcachesize
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2ericli@EricdeMacBook-Air ~ % sysctl hw.l1dcachesize hw.l1dcachesize: 65536
⑥查看一级指令缓存大小 sysctl hw.l1icachesize
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2ricli@EricdeMacBook-Air ~ % sysctl hw.l1icachesize hw.l1icachesize: 131072
一般来说,一级缓存可以分为一级数据缓存(Data Cache,D-Cache)和一级指令缓存(Instruction Cache,I-Cache)。
二者分别用来存放数据以及对执行这些数据的指令进行即时解码,而且两者可以同时被CPU访问,减少了争用Cache所造成的冲突,提高了处理器效能。
⑦查看系统全部信息 sysctl -a
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1218ericli@EricdeMacBook-Air ~ % sysctl -a user.cs_path: /usr/bin:/bin:/usr/sbin:/sbin user.bc_base_max: 99 user.bc_dim_max: 2048 user.bc_scale_max: 99 user.bc_string_max: 1000 user.coll_weights_max: 2 user.expr_nest_max: 32 user.line_max: 2048 user.re_dup_max: 255 user.posix2_version: 200112 user.posix2_c_bind: 0 user.posix2_c_dev: 0 user.posix2_char_term: 0 user.posix2_fort_dev: 0 user.posix2_fort_run: 0 user.posix2_localedef: 0 user.posix2_sw_dev: 0 user.posix2_upe: 0 user.stream_max: 20 user.tzname_max: 255 kern.ostype: Darwin kern.osrelease: 20.1.0 kern.osrevision: 199506 kern.version: Darwin Kernel Version 20.1.0: Sat Oct 31 00:07:10 PDT 2020; root:xnu-7195.50.7~2/RELEASE_ARM64_T8101 kern.maxvnodes: 119739 kern.maxproc: 2000 kern.maxfiles: 12288 kern.argmax: 1048576 kern.securelevel: 0 kern.hostname: EricdeMacBook-Air.local kern.hostid: 0 kern.clockrate: { hz = 100, tick = 10000, tickadj = 0, profhz = 100, stathz = 100 } kern.posix1version: 200112 kern.ngroups: 16 kern.job_control: 1 kern.saved_ids: 1 kern.boottime: { sec = 1613704682, usec = 364439 } Fri Feb 19 11:18:02 2021 kern.nisdomainname: kern.maxfilesperproc: 10240 kern.maxprocperuid: 1333 kern.ipc.maxsockbuf: 8388608 kern.ipc.sockbuf_waste_factor: 8 kern.ipc.somaxconn: 128 kern.ipc.nmbclusters: 65536 kern.ipc.soqlimitcompat: 1 kern.ipc.mleak_sample_factor: 500 kern.ipc.mb_normalized: 0 kern.ipc.mb_watchdog: 0 kern.ipc.mb_drain_force: 0 kern.ipc.mb_drain_maxint: 0 kern.ipc.socket_debug: 0 kern.ipc.sodefunct_calls: 320 kern.ipc.sosendminchain: 16384 kern.ipc.sorecvmincopy: 16384 kern.ipc.sosendjcl: 1 kern.ipc.sosendjcl_ignore_capab: 0 kern.ipc.sosendbigcl_ignore_capab: 0 kern.ipc.sodefunctlog: 0 kern.ipc.sothrottlelog: 0 kern.ipc.sorestrictrecv: 1 kern.ipc.sorestrictsend: 1 kern.ipc.soreserveheadroom: 1 kern.ipc.maxextbkidleperproc: 1 kern.ipc.extbkidletime: 600 kern.ipc.extbkidlercvhiwat: 131072 kern.ipc.sotcdb: 0 kern.ipc.throttle_best_effort: 0 kern.ipc.njcl: 21848 kern.ipc.njclbytes: 16384 kern.ipc.soqlencomp: 0 kern.ipc.sbmb_cnt: 0 kern.ipc.sbmb_cnt_peak: 12701 kern.ipc.sbmb_cnt_floor: 0 kern.ipc.sbmb_limreached: 0 kern.ipc.io_policy.log: 0 kern.ipc.io_policy.uuid: 1 kern.ipc.maxsendmsgx: 100 kern.ipc.maxrecvmsgx: 100 kern.usrstack: 1834352640 kern.netboot: 0 kern.sysv.shmmax: 4194304 kern.sysv.shmmin: 1 kern.sysv.shmmni: 32 kern.sysv.shmseg: 8 kern.sysv.shmall: 1024 kern.sysv.semmni: 87381 kern.sysv.semmns: 87381 kern.sysv.semmnu: 87381 kern.sysv.semmsl: 87381 kern.sysv.semume: 10 kern.aiomax: 90 kern.aioprocmax: 16 kern.aiothreads: 4 kern.corefile: /cores/core.%P kern.coredump: 1 kern.sugid_coredump: 0 kern.delayterm: 0 kern.shreg_private: 0 kern.posix.sem.max: 10000 kern.usrstack64: 6129319936 kern.tfp.policy: 2 kern.procname: sysctl kern.speculative_reads_disabled: 0 kern.osversion: 20B29 kern.safeboot: 0 kern.rage_vnode: 0 kern.tty.ptmx_max: 511 kern.check_openevt: 0 kern.threadname: kern.dtrace.err_verbose: 0 kern.dtrace.buffer_memory_maxsize: 2863311530 kern.dtrace.buffer_memory_inuse: 0 kern.dtrace.difo_maxsize: 262144 kern.dtrace.dof_maxsize: 524288 kern.dtrace.global_maxsize: 16384 kern.dtrace.provide_private_probes: 1 kern.dtrace.dof_mode: 1 kern.dtrace.ignore_fbt_blacklist: 0 kern.nbuf: 9497 kern.maxnbuf: 9497 kern.monotonic.supported: 1 kern.monotonic.pmis: 3768 0 kern.monotonic.retrograde_updates: 0 0 kern.monotonic.task_thread_counting: 1 kern.flush_cache_on_write: 0 kern.wq_stalled_window_usecs: 200 kern.wq_reduce_pool_window_usecs: 5000000 kern.wq_max_timer_interval_usecs: 50000 kern.wq_max_threads: 512 kern.wq_max_constrained_threads: 64 kern.kdbg.experimental_continuous: 0 kern.kdbg.debug: 0 kern.kdbg.oldest_time: 0 kern.ds_supgroups_supported: 1 kern.sugid_scripts: 0 kern.uuid: D8523129-E878-38BA-A8E0-1D0E8D2470B7 kern.system_version_compat: 0 kern.osproductversioncompat: 10.16 kern.osproductversion: 11.0.1 kern.osreleasetype: User kern.iossupportversion: 14.2 kern.bootargs: kern.kernelcacheuuid: 35A645C8-D626-1906-0673-BEF751E6A7AA kern.filesetuuid: 35A645C8-D626-1906-0673-BEF751E6A7AA kern.num_files: 5559 kern.num_vnodes: 119739 kern.num_tasks: 2048 kern.num_threads: 10240 kern.num_taskthreads: 2048 kern.num_recycledvnodes: 4321536 kern.namecache_disabled: 0 kern.sched_enable_smt: 1 kern.sched_allow_NO_SMT_threads: 1 kern.preheat_max_bytes: 1048576 kern.preheat_min_bytes: 32768 kern.speculative_prefetch_max: 201326592 kern.speculative_prefetch_max_iosize: 524288 kern.vm_page_free_target: 4000 kern.vm_page_free_min: 3500 kern.vm_page_free_reserved: 776 kern.vm_page_speculative_percentage: 5 kern.vm_page_speculative_q_age_ms: 500 kern.vm_max_delayed_work_limit: 32 kern.vm_max_batch: 256 kern.bootsessionuuid: 877BE1B2-231E-434A-AA74-4DD9F3C0B4E4 kern.bootuuid: D0365410-7734-4D18-841F-C5380EF3054D kern.apfsprebootuuid: D0365410-7734-4D18-841F-C5380EF3054D kern.timer.coalescing_enabled: 1 kern.timer.deadline_tracking_bin_1: 48000 kern.timer.deadline_tracking_bin_2: 120000 kern.timer.longterm.threshold: 0 kern.timer.longterm.scan_limit: 100000 kern.timer.longterm.scan_interval: 100000 kern.timer.longterm.qlen: 0 kern.timer.longterm.scan_pauses: 0 kern.vfsnspace: 0 kern.singleuser: 0 kern.minimalboot: 0 kern.affinity_sets_enabled: 1 kern.affinity_sets_mapping: 1 kern.slide: 1 kern.ipc_voucher_trace_contents: 0 kern.stack_size: 16384 kern.stack_depth_max: 0 kern.kern_feature_overrides: 1 kern.ipc_portbt: 0 kern.ikm_signature_failures: 0 kern.ikm_signature_failure_id: 0 kern.sched: edge kern.cpu_checkin_interval: 4000 kern.timer_coalesce_bg_scale: -5 kern.timer_resort_threshold_ns: 50000000 kern.timer_coalesce_bg_ns_max: 100000000 kern.timer_coalesce_kt_scale: 3 kern.timer_coalesce_kt_ns_max: 1000000 kern.timer_coalesce_fp_scale: 3 kern.timer_coalesce_fp_ns_max: 1000000 kern.timer_coalesce_ts_scale: 3 kern.timer_coalesce_ts_ns_max: 1000000 kern.timer_coalesce_tier0_scale: 3 kern.timer_coalesce_tier0_ns_max: 1000000 kern.timer_coalesce_tier1_scale: 2 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kern.skywalk.flowswitch.ip_reass: 1 kern.skywalk.flowswitch.ipfm_frag_ttl: 60 kern.skywalk.flowswitch.ipfm_timeout_tcall_ival: 1 kern.skywalk.flowswitch.flow_route_expire: 600 kern.skywalk.flowswitch.anpi1.ipfm.frag_limit: 352 kern.skywalk.flowswitch.anpi1.ipfm.frag_count: 0 kern.skywalk.flowswitch.anpi1.ipfm.queue_limit: 176 kern.skywalk.flowswitch.anpi1.ipfm.queue_count: 0 kern.skywalk.flowswitch.anpi0.ipfm.frag_limit: 352 kern.skywalk.flowswitch.anpi0.ipfm.frag_count: 0 kern.skywalk.flowswitch.anpi0.ipfm.queue_limit: 176 kern.skywalk.flowswitch.anpi0.ipfm.queue_count: 0 kern.skywalk.flowswitch.en3.ipfm.frag_limit: 352 kern.skywalk.flowswitch.en3.ipfm.frag_count: 0 kern.skywalk.flowswitch.en3.ipfm.queue_limit: 176 kern.skywalk.flowswitch.en3.ipfm.queue_count: 0 kern.skywalk.flowswitch.en4.ipfm.frag_limit: 352 kern.skywalk.flowswitch.en4.ipfm.frag_count: 0 kern.skywalk.flowswitch.en4.ipfm.queue_limit: 176 kern.skywalk.flowswitch.en4.ipfm.queue_count: 0 kern.skywalk.flowswitch.en0.ipfm.frag_limit: 352 kern.skywalk.flowswitch.en0.ipfm.frag_count: 0 kern.skywalk.flowswitch.en0.ipfm.queue_limit: 176 kern.skywalk.flowswitch.en0.ipfm.queue_count: 0 kern.skywalk.flowswitch.en1.ipfm.frag_limit: 992 kern.skywalk.flowswitch.en1.ipfm.frag_count: 0 kern.skywalk.flowswitch.en1.ipfm.queue_limit: 496 kern.skywalk.flowswitch.en1.ipfm.queue_count: 0 kern.skywalk.flowswitch.en2.ipfm.frag_limit: 992 kern.skywalk.flowswitch.en2.ipfm.frag_count: 0 kern.skywalk.flowswitch.en2.ipfm.queue_limit: 496 kern.skywalk.flowswitch.en2.ipfm.queue_count: 0 kern.skywalk.flowswitch.awdl0.ipfm.frag_limit: 352 kern.skywalk.flowswitch.awdl0.ipfm.frag_count: 0 kern.skywalk.flowswitch.awdl0.ipfm.queue_limit: 176 kern.skywalk.flowswitch.awdl0.ipfm.queue_count: 0 kern.skywalk.netif.default_drop: 0 kern.hv.supported: 1 kern.hv.max_address_spaces: 256 kern.hv.ipa_size_16k: 68719476736 kern.hv.ipa_size_4k: 68719476736 kern.willuserspacereboot: 0 kern.pmtimeout: 0 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net.inet.tcp.sendspace: 131072 net.inet.tcp.recvspace: 131072 net.inet.tcp.keepinit: 75000 net.inet.tcp.v6mssdflt: 1024 net.inet.tcp.backoff_maximum: 65536 net.inet.tcp.ecn_timeout: 60 net.inet.tcp.disable_tcp_heuristics: 0 net.inet.tcp.clear_tfocache: 0 net.inet.tcp.flow_control_response: 1 net.inet.tcp.log_in_vain: 0 net.inet.tcp.ack_strategy: 1 net.inet.tcp.blackhole: 0 net.inet.tcp.aggressive_rcvwnd_inc: 1 net.inet.tcp.delayed_ack: 3 net.inet.tcp.recvbg: 0 net.inet.tcp.drop_synfin: 1 net.inet.tcp.reass.overflows: 0 net.inet.tcp.slowlink_wsize: 8192 net.inet.tcp.maxseg_unacked: 8 net.inet.tcp.rfc3465: 1 net.inet.tcp.rfc3465_lim2: 1 net.inet.tcp.recv_allowed_iaj: 5 net.inet.tcp.doautorcvbuf: 1 net.inet.tcp.autotunereorder: 1 net.inet.tcp.autorcvbufmax: 4194304 net.inet.tcp.disable_access_to_stats: 1 net.inet.tcp.challengeack_limit: 10 net.inet.tcp.do_rfc5961: 1 net.inet.tcp.do_better_lr: 1 net.inet.tcp.rcvsspktcnt: 512 net.inet.tcp.rexmt_thresh: 3 net.inet.tcp.path_mtu_discovery: 1 net.inet.tcp.local_slowstart_flightsize: 8 net.inet.tcp.tso: 1 net.inet.tcp.ecn_setup_percentage: 100 net.inet.tcp.do_ack_compression: 1 net.inet.tcp.ack_compression_rate: 5 net.inet.tcp.ecn_initiate_out: 2 net.inet.tcp.ecn_negotiate_in: 2 net.inet.tcp.packetchain: 50 net.inet.tcp.socket_unlocked_on_output: 1 net.inet.tcp.min_iaj_win: 16 net.inet.tcp.acc_iaj_react_limit: 200 net.inet.tcp.autosndbufinc: 8192 net.inet.tcp.autosndbufmax: 4194304 net.inet.tcp.rtt_recvbg: 1 net.inet.tcp.recv_throttle_minwin: 16384 net.inet.tcp.enable_tlp: 1 net.inet.tcp.sack: 1 net.inet.tcp.sack_maxholes: 128 net.inet.tcp.sack_globalmaxholes: 65536 net.inet.tcp.sack_globalholes: 0 net.inet.tcp.fastopen_backlog: 10 net.inet.tcp.fastopen: 3 net.inet.tcp.now_init: 1042831312 net.inet.tcp.microuptime_init: 6670057 net.inet.tcp.minmss: 216 net.inet.tcp.pcbcount: 58 net.inet.tcp.tw_pcbcount: 3 net.inet.tcp.icmp_may_rst: 1 net.inet.tcp.rtt_min: 100 net.inet.tcp.rexmt_slop: 200 net.inet.tcp.randomize_ports: 0 net.inet.tcp.win_scale_factor: 3 net.inet.tcp.init_rtt_from_cache: 1 net.inet.tcp.tso_debug: 0 net.inet.tcp.tcbhashsize: 4096 net.inet.tcp.keepcnt: 8 net.inet.tcp.msl: 15000 net.inet.tcp.max_persist_timeout: 0 net.inet.tcp.always_keepalive: 0 net.inet.tcp.timer_fastmode_idlemax: 10 net.inet.tcp.broken_peer_syn_rexmit_thres: 10 net.inet.tcp.tcp_timer_advanced: 21 net.inet.tcp.tcp_resched_timerlist: 79803 net.inet.tcp.pmtud_blackhole_detection: 1 net.inet.tcp.pmtud_blackhole_mss: 1200 net.inet.tcp.cc_debug: 0 net.inet.tcp.newreno_sockets: 0 net.inet.tcp.background_sockets: 0 net.inet.tcp.cubic_sockets: 56 net.inet.tcp.use_newreno: 0 net.inet.tcp.cubic_tcp_friendliness: 0 net.inet.tcp.cubic_fast_convergence: 0 net.inet.tcp.cubic_use_minrtt: 0 net.inet.tcp.cubic_minor_fixes: 1 net.inet.tcp.cubic_rfc_compliant: 1 net.inet.tcp.bg_target_qdelay: 100 net.inet.tcp.bg_allowed_increase: 8 net.inet.tcp.bg_tether_shift: 1 net.inet.tcp.bg_ss_fltsz: 2 net.inet.tcp.log.level_info: 0 net.inet.tcp.log.enable: 0 net.inet.tcp.log.enable_usage: connection:0x1 rtt:0x2 ka:0x4 loop:0x10 local:0x20 gw:0x40 syn:0x100 fin:0x200 rst:0x400 dropnecp:0x1000 droppcb:0x2000 droppkt:0x4000 fswflow:0x8000 net.inet.tcp.log.rtt_port: 0 net.inet.tcp.log.thflags_if_family: 0 net.inet.tcp.log.privacy: 1 net.inet.tcp.log.rate_limit: 600 net.inet.tcp.log.rate_duration: 60 net.inet.tcp.log.rate_max: 0 net.inet.tcp.log.rate_exceeded_total: 0 net.inet.tcp.log.rate_current: 0 net.inet.udp.checksum: 1 net.inet.udp.maxdgram: 9216 net.inet.udp.recvspace: 786896 net.inet.udp.log_in_vain: 0 net.inet.udp.blackhole: 0 net.inet.udp.pcbcount: 50 net.inet.udp.randomize_ports: 1 net.inet.ipsec.def_policy: 1 net.inet.ipsec.esp_trans_deflev: 1 net.inet.ipsec.esp_net_deflev: 1 net.inet.ipsec.ah_trans_deflev: 1 net.inet.ipsec.ah_net_deflev: 1 net.inet.ipsec.ah_cleartos: 1 net.inet.ipsec.ah_offsetmask: 0 net.inet.ipsec.dfbit: 0 net.inet.ipsec.ecn: 0 net.inet.ipsec.debug: 0 net.inet.ipsec.esp_randpad: -1 net.inet.ipsec.bypass: 1 net.inet.ipsec.esp_port: 0 net.inet.log_restricted: 0 net.inet.raw.maxdgram: 8192 net.inet.raw.recvspace: 8192 net.inet.raw.pcbcount: 1 net.inet.mptcp.enable: 1 net.inet.mptcp.mptcp_cap_retr: 4 net.inet.mptcp.dss_csum: 0 net.inet.mptcp.fail: 1 net.inet.mptcp.keepalive: 840 net.inet.mptcp.rtthist_thresh: 600 net.inet.mptcp.rto_thresh: 1500 net.inet.mptcp.probeto: 1000 net.inet.mptcp.probecnt: 5 net.inet.mptcp.dbg_area: 31 net.inet.mptcp.dbg_level: 1 net.inet.mptcp.pcbcount: 0 net.inet.mptcp.alternate_port: 0 net.inet.mptcp.allow_aggregate: 0 net.inet.mptcp.expected_progress_headstart: 5000 net.inet.mptcp.rto: 3 net.inet.mptcp.nrto: 3 net.inet.mptcp.tw: 60 net.link.generic.system.ifcount: 16 net.link.generic.system.if_verbose: 0 net.link.generic.system.dlil_verbose: 0 net.link.generic.system.sndq_maxlen: 128 net.link.generic.system.rcvq_maxlen: 256 net.link.generic.system.rxpoll_decay: 2 net.link.generic.system.rxpoll_freeze_time: 1000000000 net.link.generic.system.rxpoll_sample_time: 10000000 net.link.generic.system.rxpoll_interval_time: 1000000 net.link.generic.system.rxpoll_interval_pkts: 0 net.link.generic.system.rxpoll_wakeups_lowat: 10 net.link.generic.system.rxpoll_wakeups_hiwat: 100 net.link.generic.system.rxpoll_max: 0 net.link.generic.system.rxpoll: 1 net.link.generic.system.dlil_input_threads: 16 net.link.generic.system.dlil_input_sanity_check: 0 net.link.generic.system.flow_advisory: 1 net.link.generic.system.delaybased_queue: 1 net.link.generic.system.hwcksum_in_invalidated: 0 net.link.generic.system.hwcksum_dbg: 0 net.link.generic.system.start_delayed: 0 net.link.generic.system.start_delay_disabled: 0 net.link.generic.system.hwcksum_dbg_mode: 0 net.link.generic.system.hwcksum_dbg_partial_forced: 0 net.link.generic.system.hwcksum_dbg_partial_forced_bytes: 0 net.link.generic.system.hwcksum_dbg_partial_rxoff_forced: 0 net.link.generic.system.hwcksum_dbg_partial_rxoff_adj: 0 net.link.generic.system.hwcksum_dbg_verified: 0 net.link.generic.system.hwcksum_dbg_bad_cksum: 0 net.link.generic.system.hwcksum_dbg_bad_rxoff: 0 net.link.generic.system.hwcksum_dbg_adjusted: 0 net.link.generic.system.hwcksum_dbg_finalized_hdr: 0 net.link.generic.system.hwcksum_dbg_finalized_data: 0 net.link.generic.system.hwcksum_tx: 1 net.link.generic.system.hwcksum_rx: 1 net.link.generic.system.tx_chain_len_count: 0 net.link.generic.system.threshold_notify: 1 net.link.generic.system.threshold_interval: 2 net.link.generic.system.enable_netagent: 0 net.link.generic.system.port_used.entry_count: 17 net.link.generic.system.port_used.entry_gen: 5 net.link.generic.system.port_used.verbose: 0 net.link.generic.system.port_used.wakeuuid_not_set_count: 0 net.link.generic.system.port_used.wakeuuid_not_set_last_time: { sec = 0, usec = 0 } Thu Jan 1 08:00:00 1970 net.link.generic.system.port_used.wakeuuid_not_set_last_if: net.link.ether.inet.prune_intvl: 300 net.link.ether.inet.probe_intvl: 7 net.link.ether.inet.max_age: 1200 net.link.ether.inet.host_down_time: 20 net.link.ether.inet.arp_llreach_base: 120 net.link.ether.inet.arp_unicast_lim: 3 net.link.ether.inet.maxtries: 5 net.link.ether.inet.maxhold: 16 net.link.ether.inet.useloopback: 1 net.link.ether.inet.proxyall: 0 net.link.ether.inet.sendllconflict: 0 net.link.ether.inet.log_arp_warnings: 0 net.link.ether.inet.keep_announcements: 1 net.link.ether.inet.send_conflicting_probes: 1 net.link.ether.inet.verbose: 0 net.link.ether.inet.maxhold_total: 1024 net.link.bridge.inherit_mac: 0 net.link.bridge.rtable_prune_period: 300 net.link.bridge.rtable_hash_size_max: 2048 net.link.bridge.txstart: 0 net.link.bridge.debug: 0 net.link.bridge.segmentation: 1 net.link.loopback.max_dequeue: 256 net.link.loopback.sched_model: 0 net.link.loopback.dequeue_sc: 0 net.link.fake.txstart: 1 net.link.fake.hwcsum: 0 net.link.fake.nxattach: 0 net.link.fake.bsd_mode: 1 net.link.fake.debug: 0 net.link.fake.wmm_mode: 0 net.link.fake.multibuflet: 0 net.link.fake.pktpool_mode: 0 net.link.fake.link_layer_aggregation_factor: 32 net.link.fake.tx_headroom: 32 net.link.fake.fcs: 0 net.link.fake.trailer_length: 0 net.link.fake.max_mtu: 2048 net.link.fake.buflet_size: 512 net.link.fake.user_access: 0 net.link.fake.if_adv_intvl: 0 net.link.fake.tx_drops: 0 net.link.bond.debug: 0 net.link.iptap.total_tap_count: 0 net.link.iptap.log: 0 net.link.pktap.total_tap_count: 0 net.link.pktap.count_unknown_if_type: 0 net.link.pktap.log: 0 net.key.debug: 0 net.key.spi_trycnt: 1000 net.key.spi_minval: 256 net.key.spi_maxval: 268435455 net.key.int_random: 60 net.key.larval_lifetime: 30 net.key.blockacq_count: 10 net.key.blockacq_lifetime: 20 net.key.esp_keymin: 256 net.key.esp_auth: 0 net.key.ah_keymin: 128 net.key.prefered_oldsa: 0 net.key.natt_keepalive_interval: 20 net.inet6.ip6.forwarding: 0 net.inet6.ip6.redirect: 1 net.inet6.ip6.hlim: 64 net.inet6.ip6.maxfragpackets: 2048 net.inet6.ip6.accept_rtadv: 1 net.inet6.ip6.keepfaith: 0 net.inet6.ip6.log_interval: 5 net.inet6.ip6.hdrnestlimit: 15 net.inet6.ip6.dad_count: 1 net.inet6.ip6.auto_flowlabel: 1 net.inet6.ip6.defmcasthlim: 1 net.inet6.ip6.gifhlim: 0 net.inet6.ip6.kame_version: 2009/apple-darwin net.inet6.ip6.use_deprecated: 1 net.inet6.ip6.rr_prune: 5 net.inet6.ip6.v6only: 0 net.inet6.ip6.rtexpire: 18 net.inet6.ip6.rtminexpire: 10 net.inet6.ip6.rtmaxcache: 128 net.inet6.ip6.use_tempaddr: 1 net.inet6.ip6.temppltime: 86400 net.inet6.ip6.tempvltime: 604800 net.inet6.ip6.auto_linklocal: 1 net.inet6.ip6.prefer_tempaddr: 1 net.inet6.ip6.use_defaultzone: 0 net.inet6.ip6.maxfrags: 4096 net.inet6.ip6.mcast_pmtu: 0 net.inet6.ip6.neighborgcthresh: 1024 net.inet6.ip6.maxifprefixes: 16 net.inet6.ip6.maxifdefrouters: 64 net.inet6.ip6.maxdynroutes: 1024 net.inet6.ip6.fragpackets: 0 net.inet6.ip6.adj_clear_hwcksum: 0 net.inet6.ip6.adj_partial_sum: 1 net.inet6.ip6.input_perf: 0 net.inet6.ip6.input_perf_bins: 0 net.inet6.ip6.check_interface: 1 net.inet6.ip6.checkinterface_debug: 0 net.inet6.ip6.output_perf: 0 net.inet6.ip6.output_perf_bins: 0 net.inet6.ip6.select_srcif_debug: 0 net.inet6.ip6.select_srcaddr_debug: 0 net.inet6.ip6.select_src_expensive_secondary_if: 0 net.inet6.ip6.select_src_strong_end: 1 net.inet6.ip6.mcast.maxgrpsrc: 512 net.inet6.ip6.mcast.maxsocksrc: 128 net.inet6.ip6.mcast.loop: 1 net.inet6.ip6.only_allow_rfc4193_prefixes: 0 net.inet6.ip6.clat_debug: 0 net.inet6.ip6.cga_conflict_retries: 3 net.inet6.ip6.compliance_profile: 0 net.inet6.ip6.maxchainsent: 12 net.inet6.ip6.dad_enhanced: 1 net.inet6.ipsec6.def_policy: 1 net.inet6.ipsec6.esp_trans_deflev: 1 net.inet6.ipsec6.esp_net_deflev: 1 net.inet6.ipsec6.ah_trans_deflev: 1 net.inet6.ipsec6.ah_net_deflev: 1 net.inet6.ipsec6.ecn: 0 net.inet6.ipsec6.debug: 0 net.inet6.ipsec6.esp_randpad: -1 net.inet6.icmp6.rediraccept: 1 net.inet6.icmp6.redirtimeout: 600 net.inet6.icmp6.nd6_prune: 1 net.inet6.icmp6.nd6_delay: 5 net.inet6.icmp6.nd6_umaxtries: 3 net.inet6.icmp6.nd6_mmaxtries: 3 net.inet6.icmp6.nd6_useloopback: 1 net.inet6.icmp6.nodeinfo: 3 net.inet6.icmp6.errppslimit: 500 net.inet6.icmp6.nd6_debug: 0 net.inet6.icmp6.nd6_accept_6to4: 1 net.inet6.icmp6.nd6_optimistic_dad: 63 net.inet6.icmp6.nd6_onlink_ns_rfc4861: 0 net.inet6.icmp6.nd6_prune_lazy: 5 net.inet6.icmp6.rappslimit: 10 net.inet6.icmp6.nd6_process_rti: 1 net.inet6.icmp6.nd6_llreach_base: 30 net.inet6.icmp6.nd6_maxsolstgt: 8 net.inet6.icmp6.nd6_maxproxiedsol: 4 net.inet6.icmp6.prproxy_cnt: 0 net.inet6.mld.gsrdelay: 10 net.inet6.mld.v1enable: 1 net.inet6.mld.v2enable: 1 net.inet6.mld.use_allow: 1 net.inet6.mld.debug: 0 net.inet6.send.opmode: 1 net.inet6.send.opstate: 1 net.systm.kctl.autorcvbufmax: 262144 net.systm.kctl.autorcvbufhigh: 0 net.systm.kctl.debug: 0 net.ppp.l2tp.nb_threads: 0 net.ppp.l2tp.thread_outq_size: 1024 net.ndrv_multi_max_count: 1024 net.statistics_privcheck: 0 net.stats.debug: 0 net.stats.sendspace: 2048 net.stats.recvspace: 8192 net.utun.max_pending_input: 512 net.utun.ring_size: 64 net.utun.tx_fsw_ring_size: 64 net.utun.rx_fsw_ring_size: 128 net.ipsec.verify_interface_creation: 0 net.ipsec.max_pending_input: 512 net.ipsec.ring_size: 64 net.ipsec.tx_fsw_ring_size: 64 net.ipsec.rx_fsw_ring_size: 128 net.ipsec.debug: 0 net.necp.drop_all_level: 0 net.necp.debug: 0 net.necp.pass_loopback: 1 net.necp.pass_keepalives: 1 net.necp.socket_policy_count: 20 net.necp.socket_non_app_policy_count: 20 net.necp.ip_policy_count: 8 net.necp.session_count: 4 net.necp.client_fd_count: 103 net.necp.client_count: 171 net.necp.arena_count: 0 net.necp.nexus_flow_count: 0 net.necp.socket_flow_count: 36 net.necp.if_flow_count: 0 net.necp.observer_fd_count: 0 net.necp.observer_message_limit: 256 net.necp.sysctl_arena_count: 0 net.necp.drop_unentitled_level: 0 net.necp.pass_interpose: 1 net.necp.restrict_multicast: 1 net.necp.dedup_policies: 0 net.necp.drop_dest_debug: 0 net.netagent.debug: 5 net.netagent.registered_count: 30 net.netagent.active_count: 29 net.cfil.log: 3 net.cfil.debug: 1 net.cfil.sock_attached_count: 0 net.cfil.active_count: 0 net.cfil.close_wait_timeout: 1000 net.cfil.sbtrim: 1 net.restricted_port.enforced: 1 net.restricted_port.verbose: 0 net.classq.verbose: 0 net.classq.sfb.holdtime: 0 net.classq.sfb.pboxtime: 0 net.classq.sfb.hinterval: 0 net.classq.sfb.increment: 82 net.classq.sfb.decrement: 16 net.classq.sfb.allocation: 0 net.classq.sfb.ratelimit: 0 net.classq.target_qdelay: 0 net.classq.update_interval: 0 net.pktsched.verbose: 0 net.qos.reset_dscp_to_wifi_ac_map: 0 net.qos.verbose: 0 net.qos.policy.restricted: 0 net.qos.policy.restrict_avapps: 0 net.qos.policy.wifi_enabled: 0 net.qos.policy.capable_enabled: 0 net.mpklog.enabled: 1 net.mpklog.type: 0 net.mpklog.version: 1 net.vsock.sendspace: 524288 net.vsock.recvspace: 524288 net.alf.loglevel: 55 net.alf.perm: 0 net.alf.defaultaction: 1 net.alf.mqcount: 0 net.smb.fs.version: 304100 net.smb.fs.loglevel: 0 net.smb.fs.kern_deadtimer: 60 net.smb.fs.kern_hard_deadtimer: 600 net.smb.fs.kern_soft_deadtimer: 30 net.smb.fs.tcpsndbuf: 8388608 net.smb.fs.tcprcvbuf: 8388608 net.smb.fs.maxwrite: 8388608 net.smb.fs.maxread: 8388608 net.smb.fs.maxsegreadsize: 8388608 net.smb.fs.maxsegwritesize: 8388608 debug.lowpri_throttle_max_iosize: 131072 debug.lowpri_throttle_tier1_window_msecs: 25 debug.lowpri_throttle_tier2_window_msecs: 100 debug.lowpri_throttle_tier3_window_msecs: 100 debug.lowpri_throttle_tier1_io_period_msecs: 40 debug.lowpri_throttle_tier2_io_period_msecs: 85 debug.lowpri_throttle_tier3_io_period_msecs: 20 debug.lowpri_throttle_tier1_io_period_ssd_msecs: 5 debug.lowpri_throttle_tier2_io_period_ssd_msecs: 15 debug.lowpri_throttle_tier3_io_period_ssd_msecs: 25 debug.lowpri_throttle_enabled: 1 debug.bpf_bufsize: 4096 debug.bpf_maxbufsize: 524288 debug.bpf_maxdevices: 256 debug.bpf_wantpktap: 0 debug.bpf_debug: 0 debug.sched: 2 debug.toggle_address_reuse: 0 debug.kextlog: 4083 debug.iotrace: 0 debug.noidle: 0 debug.swd_panic: 1 debug.swd_timeout: 0 debug.swd_wake_timeout: 0 debug.swd_sleep_timeout: 0 debug.iokit: 8388608 debug.iosk.version: Oct 31 2020 00:21:17 /AppleInternal/BuildRoot/Library/Caches/com.apple.xbs/Sources/IOSkywalkFamily/IOSkywalkFamily-166.40.6 debug.iosk.debug: 0 debug.iosk.poll_enable: 1 debug.iosk.pool_alloc_retry_interval: 2000 debug.iosk.doorbell_limit: 0 debug.iosk.tx_deq_ring_sz_factor: 3 debug.didevice_trace: 0 debug.didevice_bounce_count: 0 debug.didevice_no_bounce_count: 0 debug.didevice_cache_fully_satisfied: 0 debug.didevice_cache_spared_bytes: 0 debug.didevice_queue_depth: 0 debug.didevice_cache_size_default: 33554432 debug.didevice_enable_cache: 1 debug.didevice_read_by_kernel_bytes: 0 debug.didevice_write_by_kernel_bytes: 0 debug.mcc_debug: 3 debug.mcc_clampwaycount: -1 debug.batman: 3 hw.ncpu: 8 hw.byteorder: 1234 hw.memsize: 8589934592 hw.activecpu: 8 hw.physicalcpu: 8 hw.physicalcpu_max: 8 hw.logicalcpu: 8 hw.logicalcpu_max: 8 hw.cputype: 16777228 hw.cpusubtype: 2 hw.cpu64bit_capable: 1 hw.cpufamily: 458787763 hw.cpusubfamily: 2 hw.cacheconfig: 8 1 1 0 0 0 0 0 0 0 hw.cachesize: 3619389440 65536 4194304 0 0 0 0 0 0 0 hw.pagesize: 16384 hw.pagesize32: 16384 hw.cachelinesize: 128 hw.l1icachesize: 131072 hw.l1dcachesize: 65536 hw.l2cachesize: 4194304 hw.tbfrequency: 24000000 hw.packages: 1 hw.osenvironment: hw.ephemeral_storage: 0 hw.use_recovery_securityd: 0 hw.use_kernelmanagerd: 1 hw.serialdebugmode: 0 hw.optional.floatingpoint: 1 hw.optional.watchpoint: 4 hw.optional.breakpoint: 6 hw.optional.neon: 1 hw.optional.neon_hpfp: 1 hw.optional.neon_fp16: 1 hw.optional.armv8_1_atomics: 1 hw.optional.armv8_crc32: 1 hw.optional.armv8_2_fhm: 1 hw.optional.armv8_2_sha512: 1 hw.optional.armv8_2_sha3: 1 hw.optional.amx_version: 2 hw.optional.ucnormal_mem: 1 hw.optional.arm64: 1 hw.targettype: J313 machdep.user_idle_level: 0 machdep.wake_abstime: 2054476834660 machdep.time_since_reset: 53624174044 machdep.wake_conttime: 31132504576602 machdep.deferred_ipi_timeout: 64000 machdep.cpu.cores_per_package: 8 machdep.cpu.core_count: 8 machdep.cpu.logical_per_package: 8 machdep.cpu.thread_count: 8 machdep.cpu.brand_string: Apple processor machdep.lck_mtx_adaptive_spin_mode: 1 machdep.virtual_address_size: 47 audit.session.superuser_set_sflags_mask: 24576 audit.session.superuser_clear_sflags_mask: 24576 audit.session.member_set_sflags_mask: 0 audit.session.member_clear_sflags_mask: 16384 ktrace.state: 0 ktrace.owning_pid: 0 ktrace.background_pid: 0 ktrace.configured_by: kperf.limits.timer_min_period_ns: 50000 kperf.limits.timer_min_bg_period_ns: 1000000 kperf.limits.timer_min_pet_period_ns: 2000000 kperf.limits.timer_min_bg_pet_period_ns: 10000000 kperf.debug_level: 0 security.mac.platform_exec_logging: 0 security.mac.max_slots: 7 security.mac.labelvnodes: 1 security.mac.vnode_label_count: 4096 security.mac.device_enforce: 1 security.mac.pipe_enforce: 1 security.mac.posixsem_enforce: 1 security.mac.posixshm_enforce: 1 security.mac.proc_enforce: 1 security.mac.socket_enforce: 1 security.mac.system_enforce: 1 security.mac.sysvmsg_enforce: 1 security.mac.sysvsem_enforce: 1 security.mac.sysvshm_enforce: 1 security.mac.vm_enforce: 1 security.mac.vnode_enforce: 1 security.mac.amfi.force_policy: 0 security.mac.amfi.verbose_logging: 0 security.mac.amfi.hsp_enable: 1 security.mac.amfi.allow_only_platform_code: 0 security.mac.amfi.platform_policy: 1 security.mac.amfi.unsigned_code_policy: 1 security.mac.amfi.forced_cs_kill: 1 security.mac.sandbox.audio_active: 0 security.mac.sandbox.sentinel: .sb-0fa70bee security.mac.qtn.sandbox_enforce: 1 security.mac.qtn.user_approved_exec: 1 security.mac.endpointsecurity.log_level: 1 security.mac.endpointsecurity.panic_on_soft_fail: 0 security.mac.asp.active_rule_version: 2109296737855922043 security.mac.asp.logging_mode: 0 security.mac.asp.policy.change_scans: 1 security.mac.asp.policy.gatekeeper_enabled: 1 security.mac.asp.policy.strict_sip: 0 security.mac.asp.stats.cache_entry_count: 1258 security.mac.asp.stats.cache_allocation_count: 1884 security.mac.asp.stats.cache_release_count: 626 security.mac.asp.stats.exec_hook_work_time: 197968 security.mac.asp.stats.exec_hook_sleep_time: 933481888 security.mac.asp.stats.exec_hook_count: 17551 security.mac.asp.stats.library_hook_time: 1790419 security.mac.asp.stats.library_sleep_time: 13218174 security.mac.asp.stats.library_hook_count: 208264 security.mac.asp.stats.pending_evaluation_count: 0
最后
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