基础命令
时间同步信息 chronyc sources -v
acs@iZf8zeytjbajfs6v6d0oxuZ:~$ chronyc sources -v
210 Number of sources = 15
.-- Source mode '^' = server, '=' = peer, '#' = local clock.
/ .- Source state '*' = current synced, '+' = combined , '-' = not combined,
| / '?' = unreachable, 'x' = time may be in error, '~' = time too variable.
|| .- xxxx [ yyyy ] +/- zzzz
|| Reachability register (octal) -. | xxxx = adjusted offset,
|| Log2(Polling interval) --. | | yyyy = measured offset,
|| \ | | zzzz = estimated error.
|| | | \
MS Name/IP address Stratum Poll Reach LastRx Last sample
===============================================================================
^* 100.100.61.88 1 10 377 959 +353us[ +416us] +/- 27ms
^+ 203.107.6.88 2 10 377 952 +2201us[+2201us] +/- 33ms
^+ 120.25.115.20 2 10 275 32m +604us[ +684us] +/- 4093us
^? 10.143.33.49 0 10 0 - +0ns[ +0ns] +/- 0ns
^+ 100.100.3.1 2 10 377 925 -398us[ -398us] +/- 16ms
^+ 100.100.3.2 2 10 377 937 -1030us[-1030us] +/- 16ms
^+ 100.100.3.3 2 10 57 83 -1291us[-1291us] +/- 18ms
^? 10.143.33.50 0 10 0 - +0ns[ +0ns] +/- 0ns
^? 10.143.33.51 0 10 0 - +0ns[ +0ns] +/- 0ns
^? 10.143.0.44 0 10 0 - +0ns[ +0ns] +/- 0ns
^? 10.143.0.45 0 10 0 - +0ns[ +0ns] +/- 0ns
^? 10.143.0.46 0 10 0 - +0ns[ +0ns] +/- 0ns
^+ 100.100.5.1 2 10 377 950 -163us[ -163us] +/- 18ms
^- 100.100.5.2 2 10 241 32m -273us[ -193us] +/- 16ms
^+ 100.100.5.3 2 10 377 973 -1503us[-1441us] +/- 16ms
检查pcie信息 lspci
yxc@yxc-MS-7B89:~$ lspci
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1480
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Device 1481
00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1482
00:01.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 1483
00:01.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 1483
00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1482
00:03.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1482
00:03.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 1483
00:04.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1482
00:05.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1482
00:07.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1482
00:07.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 1484
00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1482
00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 1484
00:08.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 1484
00:08.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 1484
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 61)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1440
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1441
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1442
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1443
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1444
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1445
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1446
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1447
01:00.0 Non-Volatile memory controller: Sandisk Corp Device 5009 (rev 01)
03:00.0 USB controller: Advanced Micro Devices, Inc. [AMD] Device 43d5 (rev 01)
03:00.1 SATA controller: Advanced Micro Devices, Inc. [AMD] Device 43c8 (rev 01)
03:00.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43c6 (rev 01)
20:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43c7 (rev 01)
20:01.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43c7 (rev 01)
20:04.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43c7 (rev 01)
22:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
25:00.0 Non-Volatile memory controller: Sandisk Corp Device 5006
26:00.0 VGA compatible controller: NVIDIA Corporation Device 2206 (rev a1)
26:00.1 Audio device: NVIDIA Corporation Device 1aef (rev a1)
27:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Device 148a
28:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Device 1485
28:00.1 Encryption controller: Advanced Micro Devices, Inc. [AMD] Device 1486
28:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Device 149c
28:00.4 Audio device: Advanced Micro Devices, Inc. [AMD] Device 1487
30:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 51)
31:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 51)
查看时间diff
clockdiff ip
嵌入式端可能设计自己编译
https://github.com/iputils/iputils
file-coredump 查看coredump由哪个生成
file core-01Ad0-4841-1680489979