How to increase the download speed of the system?

Tested the read speed of the hard disk sudo hdparm -Tt /dev/sda. And got 
Timing cached reads: 20390 MB in 2.00 seconds = 10204.16 MB/sec
 Timing buffered disk reads: 332 MB in 3.01 seconds = 110.37 MB/sec
. The system boots in 2 minutes without grab. How can I increase the download speed of the system? I use arch linux, kde 5. In RAM after booting hangs 1 gb.
July 9th 19 at 13:44
More answers about "How to increase the download speed of the system?"
4 answers
July 9th 19 at 13:46
Solution
#systemd-analyze blame
#systemd-analyze critical-chain
systemd-analyze blame
 1min 4.935 s updatedb.service
 14.597 s man-db.service
 8.970 s systemd-journal-flush.service
 8.663 s dev-sda5.device
 4.143's NetworkManager.service
 3.306 s lm_sensors.service
 2.986 s systemd-journald.service
 2.893 s colord.service
 2.633 s systemd-vconsole-setup.service
 2.618 s systemd-logind.service
 2.599 s alsa-restore.service
 1.933 s systemd-udevd.service
 1.858 s systemd-tmpfiles-setup-dev.service
 1.808 s polkit.service
 1.521 s udisks2.service
 1.387 s upower.service
 1.065 s systemd-binfmt.service
 1.016 s systemd-backlight@leds:asus::kbd_backlight.service
 938ms user@1000.service
 892ms tmp.mount
 889ms wpa_supplicant.service
 875ms shadow.service
 874ms dev-mqueue.mount
 857ms sys-kernel-debug.mount
 856ms dev-hugepages.mount
 793ms systemd-remount-fs.service
 783ms logrotate.service
 666ms systemd-modules-load.service
 614ms systemd-tmpfiles-clean.service
 508ms proc-sys-fs-binfmt_misc.mount
 492ms systemd-sysctl.service
 454ms systemd-random-seed.service
 430ms systemd-udev-trigger.service
 399ms rtkit-daemon.service
 357ms systemd-backlight@backlight:intel_backlight.service
 306ms systemd-tmpfiles-setup.service
 264ms systemd-user-sessions.service
 178ms kmod-static-nodes.service
 50ms systemd-update-utmp.service
 43ms systemd-rfkill.service
 33ms sys-kernel-config.mount
 2ms sys-fs-fuse-connections.mount

graphical.target @21.649 s
└─multi-user.target @21.649 s
 └─NetworkManager.service @17.506 s +4.143 s
 └─dbus.service @14.910 s
 └─basic.target @14.857 s
 └─paths.target @14.856 s
 └─org.cups.cupsd.path @14.856 s
 └─sysinit.target @14.829 s
 └─systemd-update-utmp.service @14.779 s +50ms
 └─systemd-tmpfiles-setup.service @14.456 s +306ms
 └─systemd-journal-flush.service @5.472 s +8.970 s
 └─systemd-journald.service @2.485 s +2.986 s
 └─systemd-journald.socket @2.471 s
 └─-.mount @2.040 s
 └─system.slice @2.391 s
 └─-.slice @2.040 s
- Precious.Dooley commented on July 9th 19 at 13:49
: https://www.reddit.com/r/archlinux/comments/36fqzh... - sherwood.Gutkows commented on July 9th 19 at 13:52
: and the fact that NetworkManager is loaded so 17 seconds is this normal? - Precious.Dooley commented on July 9th 19 at 13:55
can you explain please what does systemd-analyze critical-chain? In arch wiki is not written in Russian, and in English not clear? - Precious.Dooley commented on July 9th 19 at 13:58
: NetworkManager has started loading at 17 seconds and loaded 4 - sherwood.Gutkows commented on July 9th 19 at 14:01
July 9th 19 at 13:48
Watch that slows down when loading. I have even on the atom - loading in 3-4 seconds, without the graphics - Ubuntu. Graphics for 3-5 seconds slower.
Most likely slows the loading some sort of service or misconfigured DNS servers, which affects all network services.
How to verify properly configured dns server? - Precious.Dooley commented on July 9th 19 at 13:51
In /etc/resolv.conf # Generated by resolvconf
try accessing 77.88.8.8 nameserver
nameserver 8.8.8.8 - sherwood.Gutkows commented on July 9th 19 at 13:54
With dns you all right, the rest wrote. - Precious.Dooley commented on July 9th 19 at 13:57
July 9th 19 at 13:50
To send the system to sleep, not shut down completely.
July 9th 19 at 13:52
https://wiki.archlinux.org/index.php/Improve_boot_...
And from there look for the link "Systemd".

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