APIC

Sissejuhatus

TODO

• APIC - advanced programmable interrupt controller
• PIC - programmable interrupt controller
• MSI - Message Signaled Interrupts
• MSI-X
• GPE - general purpose event

Tööpõhimõte

Tarkvara paigaldamine

# apt-get install procinfo

Lenovo T460p, Ubuntu 22.40

root@ubu2110:~# procinfo
Memory:        Total        Used        Free     Buffers
RAM:        16233788     4306100    11927688      195916
Swap:        1048572           0     1048572

Bootup: Tue Sep 30 20:02:24 2025   Load average: 0.06 0.02 0.00 1/446 6785

user  :           00:21:14.72   0.1%  page in :          1537640
nice  :           00:00:05.26   0.0%  page out:          2656893
system:           00:05:07.07   0.0%  page act:           320524
IOwait:           00:00:45.59   0.0%  page dea:                0
hw irq:           00:00:00.00   0.0%  page flt:          2675345
sw irq:           00:00:39.83   0.0%  swap in :                0
idle  :     1w 6d 22:47:07.85  99.9%  swap out:                0
uptime:        1d 17:55:56.50         context :         20924888

irq   0:         13  2-edge timer        irq 127:        545  327680-edge xhci_
irq   1:        101  1-edge i8042        irq 128:     113773  376832-edge ahci[
irq   8:          0  8-edge rtc0         irq 129:      75473  520192-edge enp0s
irq   9:      29532  9-fasteoi acpi      irq 130:         28  1048576-edge nvkm
irq  12:      10875  12-edge i8042       irq 131:     201383  32768-edge i915
irq  16:          3  16-fasteoi i801_s   irq 132:        104  360448-edge mei_m
irq 120:          0  0-edge dmar0        irq 133:     706131  1572864-edge iwlw
irq 121:          0  1-edge dmar1        irq 134:        677  514048-edge snd_h
irq 126:        514  2097152-edge rtsx


bridge0     TX 0.00B         RX 0.00B         lo          TX 140.04KiB     RX 140.04KiB
enp0s31f6   TX 0.00B         RX 0.00B         wlp3s0      TX 38.97MiB      RX 1.19GiB

lsdev

root@ubu2110:~# lsdev
Device            DMA   IRQ  I/O Ports
------------------------------------------------
0000:00:02.0                   e000-e03f
0000:00:17.0                   e060-e07f   e080-e087   e088-e08b
0000:00:1f.4                   efa0-efbf
0000:02:00.0                     d000-d07f
acpi                      9
ACPI                             1800-1803     1804-1805     1808-180b     1810-1815     1850-1850     1880-189f
ahci                             e060-e07f     e080-e087     e088-e08b
ahci[0000:00:17.0]        128
cascade             4
dma                            0080-008f
dma1                           0000-001f
dma2                           00c0-00df
dmar0                   120
dmar1                   121
EC                               0062-0062     0066-0066
enp0s31f6               129
fpu                            00f0-00ff
i801_smbus               16      efa0-efbf
i8042                  1 12
i915                    131
iTCO_wdt                       0400-041f
iwlwifi                 133
keyboard                       0060-0060   0064-0064
mei_me                  132
nvkm                    130
PCI                          0000-0cf7 0cf8-0cff 0d00-ffff   d000-dfff
pic1                           0020-0021
pic2                           00a0-00a1
pnp                            0800-087f   0880-08ff   0900-097f   0980-09ff   0a00-0a7f   0a80-0aff   0b00-0b7f   0b80-0bff   15e0-15ef   1600-167f     1640-165f   1800-189f   ff00-fffe
PNP0800:00                     0061-0061
PNP0C04:00                       00f0-00f0
PNP0C09:00                     0062-0062   0066-0066
rtc0                      8    0070-0071
rtsx_pci                126
serial                         03f8-03ff
snd_hda_intel:card0        134
timer                     0
timer0                         0040-0043
timer1                         0050-0053
xhci_hcd                127

ning

root@ubu2110:~# socklist
type  port      inode     uid    pid   fd  name
tcp     22      29526      0   1267    3 sshd
tcp     53      22317    102   1072   14 systemd-resolve
tcp    631      46510      0   3970    7 cupsd
tcp     22      89330      0   6762    4 sshd
tcp     22      36988      0   2351    4 sshd
tcp     22      53425      0   4980    4 sshd
tcp6    22      29528      0   1267    4 sshd
tcp6   631      46509      0   3970    6 cupsd
udp   5353      29467    113   1118   12 avahi-daemon
udp  40221      29469    113   1118   14 avahi-daemon
udp     53      22316    102   1072   13 systemd-resolve
udp     68      78770      0   1124   28 NetworkManager
udp6  5353      29468    113   1118   13 avahi-daemon
udp6 41918      29470    113   1118   15 avahi-daemon
raw6    58      36916      0   1124   29 NetworkManager
root@ubu2110:~#

Kasulikud lisamaterjalid

• TODO