どちらのパソコンでも長く使っているとだんだん不具合が出るようになってきます。
大体一週間に一遍ほどシングルユーザーモード（Single user mode）で起動してfsckコマンドを使います。
アクセス権の修復とキャッシュを削除がされるようです。OnyXも使えばもっとよいでしょう。
CrayonSyntaxHighlighterを使って、コードを色分けしてみました。
fsckコマンドのインフォメーションに$マークが出ているので、以前と違うようになったのが
ちょっと気になります。
Security policy loaded: Quarantine policy（Quarantine）
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regent of the University of California. All rights reserved.
MAC Framework successfully initialized
using 16384 buffer headers and 10240 cluster IO buffer headers
AppleCredentialManeger::start called
AssertMacros: tmpData (value: 0x0), fille: /BuildRoot/Librarary/Caches/com.apple.xbs/Souces/AppleCredetialManager/Apple….
AppleKeyStore starting (BUILT: Feb 17 2017 11:51:28) initialization complete
[ PCI configuration begin]
console relocated ti 0xf80020000
[ PCI configuration end, bridges 13, device 16 ]
Airport_Brcm4360::init “AirportFamily_kexts-1110.28” Feb 17 2017 11:24:05
Airport_Brcm4331::init “AirportFamily_kexts-1110.28” Feb 17 2017 11:24:05
AppleThunderboltNHIType2::setupPowerSavings - GPE based runtime power management
mcash: 4 CPU(s) , 64bytes CPU case line size
mbinit: done [96 MB total pool size, (64/32) split]
rooting via boot -uuid from /chosen: 45E51F47-50B7-314C-9DFB-0A2A79223E4D
com.apple.AppleFSCCompresionTypeZlib mod start
com.apple.AppleFSCCompresionTypeDataless mod start
com.apple.AppleFSCCompresionTypeZlib load succeeded
com.apple.AppleFSCCompresionTypeDataless load succeeded
AppleIntelCPUPowerManagementClient: ready
IO80211Controller::createIOReporters 0x5dfd2d617fe0b6b1
CCFlags: 0x0 CCLevel: 5 ConsoleFlags: 0x0, ConsoleLevel : -1
No Service found 100000280
configureInterests - nElements <= 0!Failed to addSubscription for groupIO802 Chip subgroup Bytes Transferred driver 0x5dfd2d617fe8b6b1,prove…
IO80211ControllerMonitor:: ConfiguerSubscriptions() failed to add subscriptionIO80211Controller start _controller is 0x5d617fe0b1,pro..
Wating on <dict ID=“0”><key>IOProviderClass</key><string ID=“1”>IOResouces</string><key>IOResouceMatch</key><string ID=“2”>boot-uuid-media..
Got boot device = IOService:/AppleACPIPlaftformExpert/PCOIO@0/AppleACPIPCI/SATA@1F,2/AppleIntelPchSeriesAHCI/PRT0@0/IOAHCIDevice@0/AppleAHCIDesk…
BSD root : disk0s2, major 1, minor 2
ARPT: 1.641902: from rev:9
init: error getting PHY_MODE; using MODE_UNKNOWN
ARPT: 1.671203: BRCM tunables:
ARPT: 1.677748: pullmode[1] txringsize[ 256] txsedqsize[1024] reapmin[ 32] reapcount[ 128]
ARPT: 1.686976: wl0: Broadcom BCM4331, venderID[0xb1900004]
7.21.95.175 (r622517)
No interval found for .Using 8000000
000002,075789 PRT4@14400000: AppleUSB20XHCIPort::resetAndCreateDevice: failed to create device, disabling port
USBMSC Identifier (non-unique): 000052B1A0003056 0x141 0x2, 3
hfs: mounted Macintosh HD on device root_device
VM Swap Subsystem is ON
IOBluetoothUSBFU::probe
IOBluetoothUSBFU::probe ProductID - 0x828B FirmwareVersion - 0x0118
Darwin Bootstrapped Version 3.4.0: Sat Apr 2 20:54;16 PDT 2016; root:TempContent/launchd/RELEASE_X86_64
boot-arg = -s
Wed Jun 7 15:34:13 2017 com.apple.xpc.launchd[1] <Notice> :System Integrity Protection is engaged.
Wed Jun 7 15:34:13 2017 localhost com.apple.xpc.launchd[1]<Notice>:
tiring single-user mode,
*** Single-user boot ***
Root device is mounted read-only
Enabling and disabling service is not supported in single-usermode,
and disabled service will not be respected when loading service
while in single-user mode.
To mount the root device as read-write:
$ /sbin/fsck -fy
$ /sbin/mount -uw /
To boot the system:
$ exit
localhost:/ root# /sbin/fsck -fy
** /dev/rdisk0s2
** Root file system
Exciting fsck_hfs (version hfs-305.10.1).
** Checking Journaled HFS Plus volume.
The volume name is Macintosh HD
** Checking extents overflow file.
** Checking catalog file.
** Checking multi-linked files.
** Checking catalog hierarchy.
** Checking extended attributes file.
** Checking volume bitmap
** Checking Volume information.
** The volume Macintosh HD appears to be OK
localhost:/ root#
ーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーー
