Bug 228959 - 12.0 booting 2x faster to login compared to 11.2
Summary: 12.0 booting 2x faster to login compared to 11.2
Status: New
Alias: None
Product: Base System
Classification: Unclassified
Component: bin (show other bugs)
Version: CURRENT
Hardware: Any Any
: --- Affects Many People
Assignee: Colin Percival
URL:
Keywords:
Depends on: 228960
Blocks: 228911
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Reported: 2018-06-12 16:13 UTC by Rodney W. Grimes
Modified: 2018-08-07 09:14 UTC (History)
3 users (show)

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Description Rodney W. Grimes freebsd_committer 2018-06-12 16:13:29 UTC
12.0 booting 2x faster to login compared to 11.2
Comment 1 Rodney W. Grimes freebsd_committer 2018-06-12 16:25:38 UTC
Add dependency on PR 228960, Why is the boot loader taking so long
Comment 2 Colin Percival freebsd_committer 2018-08-07 09:10:32 UTC
For reference, the "top 10" list from TSLOG on 11.2-RELEASE in ms on a c5.4xlarge instance:

2930 _vprintf
1273 DEVICE_PROBE psm;DELAY
1000 SYSINIT cpu;DELAY
1000 SYSINIT clocks;DELAY
800 DEVICE_ATTACH ena;DELAY
642 hammer_time;DELAY
627 SYSINIT start_aps
430 DEVICE_ATTACH atkbd;DELAY
302 DEVICE_PROBE psm
235 DEVICE_ATTACH nvme;DELAY

9994 TOTAL
Comment 3 Colin Percival freebsd_committer 2018-08-07 09:14:17 UTC
HEAD as of r337411 on a c5.4xlarge:

1332 _vprintf
1224 DEVICE_PROBE psm;DELAY
1000 SYSINIT cpu;DELAY
1000 SYSINIT apic_setup_io;DELAY
700 DEVICE_ATTACH ena;DELAY
642 hammer_time;DELAY
430 DEVICE_ATTACH atkbd;DELAY
306 DEVICE_PROBE psm
235 DEVICE_ATTACH nvme;DELAY
156 SYSINIT cpu_mp;DELAY

7602 TOTAL