linux system specs commands (CPU, Memory, Disk )speed, type. manufacture

To Know CPU cores & Speed

To Know RAM Size and Speed Aka Bandwidth

to Know Disk Size IOPS (Need to test) or finding device type and protocol hdd,sata nvme.

bash: /proc/cpuinfo: Permission denied

root@instance-1:~# cat /proc/cpuinfo | grep ‘core id’

core id : 0

core id : 0

root@instance-1:~# cat /proc/cpuinfo | grep processor | wc -l

2

root@instance-1:~# nproc
2

root@instance-1:~# cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 85
model name : Intel(R) Xeon(R) CPU @ 2.00GHz
stepping : 3
microcode : 0x1
cpu MHz : 2000.160
cache size : 39424 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 1
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : 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 xtopology nonstop_tsc cpuid tsc_known_freq pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt aes xsave avx f16c rdrand hyper visor lahf_lm abm 3dnowprefetch invpcid_single pti ssbd ibrs ibpb stibp fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm mpx avx512f avx512dq rdseed adx smap clflushopt clwb avx512cd avx512bw avx512vl xsaveopt xsavec xgetbv1 xsa ves arat md_clear arch_capabilities
bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs taa itlb_multihit
bogomips : 4000.32
clflush size : 64
cache_alignment : 64
address sizes : 46 bits physical, 48 bits virtual
power management:

processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 85
model name : Intel(R) Xeon(R) CPU @ 2.00GHz
stepping : 3
microcode : 0x1
cpu MHz : 2000.160
cache size : 39424 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 1
apicid : 1
initial apicid : 1
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : 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 xtopology nonstop_tsc cpuid tsc_known_freq pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt aes xsave avx f16c rdrand hyper visor lahf_lm abm 3dnowprefetch invpcid_single pti ssbd ibrs ibpb stibp fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm mpx avx512f avx512dq rdseed adx smap clflushopt clwb avx512cd avx512bw avx512vl xsaveopt xsavec xgetbv1 xsa ves arat md_clear arch_capabilities
bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs taa itlb_multihit
bogomips : 4000.32
clflush size : 64
cache_alignment : 64
address sizes : 46 bits physical, 48 bits virtual
power management:

root@instance-1:~#

root@instance-1:~# free -g
total used free shared buff/cache available
Mem: 3 1 0 0 2 2
Swap: 0 0 0
root@instance-1:~#

threads per core if one  No virtualization enabled

If threads per core = two, then virtualization enabled

dmidecode to know cpu socket model

ex: total cpu 4

threads per core =2

2 physical cores * hyperthreading =4vcpu.

2 physical cores actually.

read more on hyperthreading & turbo boost.

CPU MHZ 2500 (2.5GHZ)

max mhz (turbo boost ) not overclocked.

sudo apt-get install cpuid

sudo lshw

sudo lshw -short -C memory

lshw -class disk

root@instance-1:~# lshw -class disk
*-disk
description: SCSI Disk // (SAS, SATA, SCSI and ATA)
product: PersistentDisk
vendor: Google
physical id: 0.1.0
bus info: scsi@0:0.1.0
logical name: /dev/sda
version: 1
size: 30GiB (32GB)
capabilities: gpt-1.00 partitioned partitioned:gpt
configuration: ansiversion=6 guid=760c3e21-8024-4623-b29f-6156d1355e3a logicalsectorsize=512 sectorsize=4096
root@instance-1:~#

sudo lshw -C CPU

root@instance-1:~# sudo dmidecode –type 17
# dmidecode 3.1
Getting SMBIOS data from sysfs.
SMBIOS 2.4 present.

Handle 0x7000, DMI type 17, 21 bytes
Memory Device
Array Handle: 0x0200
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: 4096 MB
Form Factor: DIMM
Set: None
Locator: DIMM 0
Bank Locator: Not Specified
Type: RAM
Type Detail: Synchronous

or

you can read ram types DDR3 vs DDR4 vs DDR5.

root@instance-1:~# sudo dmidecode –type processor
# dmidecode 3.1
Getting SMBIOS data from sysfs.
SMBIOS 2.4 present.

Handle 0x1001, DMI type 4, 32 bytes
Processor Information
Socket Designation: CPU 1
Type: Central Processor
Family: Other
Manufacturer: Google
ID: 53 06 05 00 FF FB 8B 1F
Version: Not Specified
Voltage: Unknown
External Clock: Unknown
Max Speed: 2000 MHz
Current Speed: 2000 MHz
Status: Populated, Enabled
Upgrade: Other
L1 Cache Handle: Not Provided
L2 Cache Handle: Not Provided
L3 Cache Handle: Not Provided

Handle 0x1002, DMI type 4, 32 bytes
Processor Information
Socket Designation: CPU 2
Type: Central Processor
Family: Other
Manufacturer: Google
ID: 53 06 05 00 FF FB 8B 1F
Version: Not Specified
Voltage: Unknown
External Clock: Unknown
Max Speed: 2000 MHz
Current Speed: 2000 MHz
Status: Populated, Enabled
Upgrade: Other
L1 Cache Handle: Not Provided
L2 Cache Handle: Not Provided
L3 Cache Handle: Not Provided

root@instance-1:~#

smartctl -a /dev/yourdrive

smartctl -a /dev/sda1

Command ‘smartctl’ not found, but can be installed with:

apt install smartmontools

45MB

device manufacture, model, serial number

total space,

root@instance-1:~# smartctl -a /dev/sda1
smartctl 6.6 2016-05-31 r4324 [x86_64-linux-5.3.0-1030-gcp] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Vendor: Google
Product: PersistentDisk
Revision: 1
Compliance: SPC-4
User Capacity: 32,212,254,720 bytes [32.2 GB]
Logical block size: 512 bytes
LU is fully provisioned [LBPRZ=1]
Rotation Rate: 1025 rpm
Serial number:
Device type: disk
Local Time is: Fri Jul 31 15:44:15 2020 UTC
SMART support is: Unavailable – device lacks SMART capability.

=== START OF READ SMART DATA SECTION ===
Current Drive Temperature: 0 C
Drive Trip Temperature: 0 C

Error Counter logging not supported

Device does not support Self Test logging
root@instance-1:~#

Fdisk, sfdisk, parted,lsblk,

hdparm -i /dev/sda1

SATA I (150 MB/s) or

 SATA II (300 MB/s) or

 SATA III (500MB/s) speed

NVME 6GB/S

sudo hdparm -I /dev/sda | grep -i speed

sync; dd if=/dev/zero of=tempfile bs=1M count=1024; sync

dd if=/dev/zero of=/tmp/test1.img bs=1G count=1 oflag=dsync

dd if=tempfile of=/dev/null bs=1M count=1024

delete tempfile after.

bs=1M

1MB file 1024 times

Block Device Information with lsblk

lsblk -a

root@instance-1:~# lsblk -a
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
loop0 7:0 0 118.7M 1 loop /snap/google-cloud-sdk/143
loop1 7:1 0 55M 1 loop /snap/core18/1754
loop2 7:2 0 97M 1 loop /snap/core/9665
loop3 7:3 0 55M 1 loop /snap/core18/1880
loop4 7:4 0 118.5M 1 loop /snap/google-cloud-sdk/142
loop5 7:5 0 96.5M 1 loop /snap/core/9436
loop6 7:6 0 1 loop
loop7 7:7 0 0 loop
sda 8:0 0 30G 0 disk
├─sda1 8:1 0 29.9G 0 part /
├─sda14 8:14 0 4M 0 part
└─sda15 8:15 0 106M 0 part /boot/efi
root@instance-1:~#

-t buffered read

-T cache read

root@instance-1:~# hdparm -Tt /dev/sda

/dev/sda:
Timing cached reads: 15558 MB in 1.99 seconds = 7812.32 MB/sec
Timing buffered disk reads: 376 MB in 3.01 seconds = 125.05 MB/sec
root@instance-1:~# hdparm -Tt /dev/sda

/dev/sda:
Timing cached reads: 15342 MB in 1.99 seconds = 7702.95 MB/sec
Timing buffered disk reads: 380 MB in 3.00 seconds = 126.63 MB/sec
root@instance-1:~# hdparm -Tt /dev/sda

/dev/sda:
Timing cached reads: 15222 MB in 1.99 seconds = 7643.60 MB/sec
Timing buffered disk reads: 382 MB in 3.02 seconds = 126.63 MB/sec

in windows we use crystalmark

crystal disk utilities

ethtool eth0 no such device

you can see network card speed.

Maximum Transmission Unit (MTU size)

ifconfig eth0 mtu XX (maximum number of octets in one transmission)

ifconfig eth0
eth0: error fetching interface information: Device not found

to view Linux TCP buffer sizes

cat /proc/sys/net/ipv4/tcp_mem

sysctl.cnf

sysctl -p to reload changes

uname Command