asfenlocker.blogg.se - Cat proc cpuinfo virtual address

/proc/dma: This file contains a list of the registered ISA DMA channels in use.

/proc/devices: This file displays the various character and block devices currently configured (not including devices whose modules are not loaded).

/proc/crypto: This file lists all installed cryptographic ciphers used by the Linux kernel, including additional details for each.

/proc/cpuinfo: This virtual file identifies the type of processor used by your system.

/proc/cmdline: This file shows the parameters passed to the kernel at the time it is started.

/proc/buddyinfo: This file is used primarily for diagnosing memory fragmentation issues.

Many of these files are described further in applicable lessons. This is not meant to be an all-inclusive list, but to give examples of some of the files and their purpose. Some of the more useful virtual files in the top-level of the /proc directory are described here. To change the value of a virtual file, use the following syntax: This is especially true for files in the /proc/sys directory.

However, some are writable and can be used to adjust settings in the kernel. Most virtual files within the /proc directory are read-only.

QXL paravirtual graphic card (rev 04)Ġ0:03.0 Ethernet controller: Red Hat, Inc Virtio network deviceĠ0:04.0 SCSI storage controller: Red Hat, Inc Virtio SCSIĠ0:05.0 SCSI storage controller: Red Hat, Inc Virtio block deviceĠ0:06.0 SCSI storage controller: Red Hat, Inc Virtio block deviceĠ0:07.0 Unclassified device : Red Hat, Inc Virtio memory balloon Changing Virtual Files For example, use the lspci command to list all PCI devices:Ġ0:00.0 Host bridge: Intel Corporation 440FX - 82441FX PMC (rev 02)Ġ0:01.0 ISA bridge: Intel Corporation 82371SB PIIX3 ISA Ġ0:01.1 IDE interface: Intel Corporation 82371SB PIIX3 IDE Ġ0:01.2 USB controller: Intel Corporation 82371SB PIIX3 USB (rev 01)Ġ0:01.3 Bridge: Intel Corporation 82371AB/EB/MB PIIX4 ACPI (rev 03)Ġ0:02.0 VGA compatible controller: Red Hat, Inc. Use utilities such as lspci, free, and top to view these files. Some files in /proc contain information that is not human readable. Model name : Intel(R) Xeon(R) Platinum 8163 CPU 2.Model name : Intel(R) Xeon(R) CPU E5-2650 v4 2.20GHzįlags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon rep_good nopl eagerfpu pni pclmulqdq vmx ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch invpcid_single tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm rdseed adx smap xsaveoptĪddress sizes : 40 bits physical, 48 bits virtualĬertain files can only be accessed with root privileges. 50GHzįlags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl cpuid tsc_known_freq pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch invpcid_single pti ibrs ibpb stibp fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm mpx avx512f avx512dq rdseed adx smap avx512cd avx512bw avx512vl xsaveopt xsavec xgetbv1īugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs taa itlb_multihitĪddress sizes : 46 bits physical, 48 bits virtual Model name : Intel(R) Xeon(R) Platinum 8163 CPU 2.