+ echo '===== instance-type ====='
===== instance-type =====
++ curl -sX PUT http://169.254.169.254/latest/api/token -H 'X-aws-ec2-metadata-token-ttl-seconds: 300'
+ TOKEN=AQAEAPtReoK39QdM7gGpyO3V1Sx1jNBi2dQ-O0LWVEYIUDLGPfg-zg==
+ curl -s -H 'X-aws-ec2-metadata-token: AQAEAPtReoK39QdM7gGpyO3V1Sx1jNBi2dQ-O0LWVEYIUDLGPfg-zg==' http://169.254.169.254/latest/meta-data/instance-type
m4.large+ echo

+ echo '===== uname ====='
===== uname =====
+ uname -a
Linux ip-172-31-86-10 6.17.0-1019-aws #19~24.04.1-Ubuntu SMP Tue Jun 23 18:53:06 UTC 2026 x86_64 x86_64 x86_64 GNU/Linux
+ echo '===== lscpu ====='
===== lscpu =====
+ lscpu
Architecture:                            x86_64
CPU op-mode(s):                          32-bit, 64-bit
Address sizes:                           46 bits physical, 48 bits virtual
Byte Order:                              Little Endian
CPU(s):                                  2
On-line CPU(s) list:                     0,1
Vendor ID:                               GenuineIntel
BIOS Vendor ID:                          Intel
Model name:                              Intel(R) Xeon(R) CPU E5-2686 v4 @ 2.30GHz
BIOS Model name:                           CPU @ 2.3GHz
BIOS CPU family:                         1
CPU family:                              6
Model:                                   79
Thread(s) per core:                      2
Core(s) per socket:                      1
Socket(s):                               1
Stepping:                                1
BogoMIPS:                                4599.99
Flags:                                   fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx pdpe1gb rdtscp lm rep_good nopl xtopology 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 pti fsgsbase bmi1 avx2 smep bmi2 erms invpcid xsaveopt
Hypervisor vendor:                       Xen
Virtualization type:                     full
L1d cache:                               32 KiB (1 instance)
L1i cache:                               32 KiB (1 instance)
L2 cache:                                256 KiB (1 instance)
L3 cache:                                45 MiB (1 instance)
NUMA node(s):                            1
NUMA node0 CPU(s):                       0,1
Vulnerability Gather data sampling:      Not affected
Vulnerability Ghostwrite:                Not affected
Vulnerability Indirect target selection: Mitigation; Aligned branch/return thunks
Vulnerability Itlb multihit:             KVM: Mitigation: VMX unsupported
Vulnerability L1tf:                      Mitigation; PTE Inversion
Vulnerability Mds:                       Vulnerable: Clear CPU buffers attempted, no microcode; SMT Host state unknown
Vulnerability Meltdown:                  Mitigation; PTI
Vulnerability Mmio stale data:           Vulnerable: Clear CPU buffers attempted, no microcode; SMT Host state unknown
Vulnerability Old microcode:             Not affected
Vulnerability Reg file data sampling:    Not affected
Vulnerability Retbleed:                  Not affected
Vulnerability Spec rstack overflow:      Not affected
Vulnerability Spec store bypass:         Vulnerable
Vulnerability Spectre v1:                Mitigation; usercopy/swapgs barriers and __user pointer sanitization
Vulnerability Spectre v2:                Mitigation; Retpolines; STIBP disabled; RSB filling; PBRSB-eIBRS Not affected; BHI Retpoline
Vulnerability Srbds:                     Not affected
Vulnerability Tsa:                       Not affected
Vulnerability Tsx async abort:           Not affected
Vulnerability Vmscape:                   Not affected
+ echo '===== lscpu-cache ====='
===== lscpu-cache =====
+ lscpu -C
NAME ONE-SIZE ALL-SIZE WAYS TYPE        LEVEL  SETS PHY-LINE COHERENCY-SIZE
L1d       32K      32K    8 Data            1    64        1             64
L1i       32K      32K    8 Instruction     1    64        1             64
L2       256K     256K    8 Unified         2   512        1             64
L3        45M      45M   20 Unified         3 36864        1             64
+ echo '===== cpuinfo ====='
===== cpuinfo =====
+ head -40 /proc/cpuinfo
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 79
model name	: Intel(R) Xeon(R) CPU E5-2686 v4 @ 2.30GHz
stepping	: 1
microcode	: 0x5003901
cpu MHz		: 2299.998
cache size	: 46080 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 ht syscall nx pdpe1gb rdtscp lm rep_good nopl xtopology 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 pti fsgsbase bmi1 avx2 smep bmi2 erms invpcid xsaveopt
bugs		: cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs itlb_multihit mmio_stale_data bhi spectre_v2_user its
bogomips	: 4599.99
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		: 79
model name	: Intel(R) Xeon(R) CPU E5-2686 v4 @ 2.30GHz
stepping	: 1
microcode	: 0x5003901
cpu MHz		: 2299.998
cache size	: 46080 KB
physical id	: 0
siblings	: 2
core id		: 0
cpu cores	: 1
+ echo '===== THP ====='
===== THP =====
+ cat /sys/kernel/mm/transparent_hugepage/enabled
always [madvise] never
+ echo '===== meminfo ====='
===== meminfo =====
+ head -5 /proc/meminfo
MemTotal:        8125812 kB
MemFree:         6580388 kB
MemAvailable:    7461692 kB
Buffers:           41776 kB
Cached:          1049440 kB
+ echo '===== dmidecode-memory ====='
===== dmidecode-memory =====
+ dmidecode -t memory
# dmidecode 3.5
Getting SMBIOS data from sysfs.
SMBIOS 2.7 present.

Handle 0x1000, DMI type 16, 19 bytes
Physical Memory Array
	Location: Other
	Use: System Memory
	Error Correction Type: Multi-bit ECC
	Maximum Capacity: 8 GB
	Error Information Handle: Not Provided
	Number Of Devices: 1

Handle 0x1100, DMI type 17, 34 bytes
Memory Device
	Array Handle: 0x1000
	Error Information Handle: 0x0000
	Total Width: 64 bits
	Data Width: 64 bits
	Size: 8 GB
	Form Factor: DIMM
	Set: None
	Locator: DIMM 0
	Bank Locator: Not Specified
	Type: RAM
	Type Detail: None
	Speed: Unknown
	Manufacturer: Not Specified
	Serial Number: Not Specified
	Asset Tag: Not Specified
	Part Number: Not Specified
	Rank: Unknown
	Configured Memory Speed: Unknown

+ echo '===== dmidecode-processor ====='
===== dmidecode-processor =====
+ dmidecode -t processor
# dmidecode 3.5
Getting SMBIOS data from sysfs.
SMBIOS 2.7 present.

Handle 0x0401, DMI type 4, 35 bytes
Processor Information
	Socket Designation: CPU 1
	Type: Central Processor
	Family: Other
	Manufacturer: Intel
	ID: F1 06 04 00 FF FB 8B 17
	Version: Not Specified
	Voltage: Unknown
	External Clock: Unknown
	Max Speed: 2300 MHz
	Current Speed: 2300 MHz
	Status: Populated, Enabled
	Upgrade: Other
	L1 Cache Handle: Not Provided
	L2 Cache Handle: Not Provided
	L3 Cache Handle: Not Provided
	Serial Number: Not Specified
	Asset Tag: Not Specified
	Part Number: Not Specified

Handle 0x0402, DMI type 4, 35 bytes
Processor Information
	Socket Designation: CPU 2
	Type: Central Processor
	Family: Other
	Manufacturer: Intel
	ID: F1 06 04 00 FF FB 8B 17
	Version: Not Specified
	Voltage: Unknown
	External Clock: Unknown
	Max Speed: 2300 MHz
	Current Speed: 2300 MHz
	Status: Populated, Enabled
	Upgrade: Other
	L1 Cache Handle: Not Provided
	L2 Cache Handle: Not Provided
	L3 Cache Handle: Not Provided
	Serial Number: Not Specified
	Asset Tag: Not Specified
	Part Number: Not Specified

+ echo '===== dmidecode-system ====='
===== dmidecode-system =====
+ dmidecode -t system
# dmidecode 3.5
Getting SMBIOS data from sysfs.
SMBIOS 2.7 present.

Handle 0x0100, DMI type 1, 27 bytes
System Information
	Manufacturer: Xen
	Product Name: HVM domU
	Version: 4.11.amazon
	Serial Number: ec28c074-5a57-c95a-8a62-bceaa0126f0c
	UUID: ec28c074-5a57-c95a-8a62-bceaa0126f0c
	Wake-up Type: Power Switch
	SKU Number: Not Specified
	Family: Not Specified

Handle 0x2000, DMI type 32, 11 bytes
System Boot Information
	Status: No errors detected

+ echo '===== dmidecode-bios ====='
===== dmidecode-bios =====
+ dmidecode -t bios
# dmidecode 3.5
Getting SMBIOS data from sysfs.
SMBIOS 2.7 present.

Handle 0x0000, DMI type 0, 24 bytes
BIOS Information
	Vendor: Xen
	Version: 4.11.amazon
	Release Date: 08/24/2006
	Address: 0xE8000
	Runtime Size: 96 kB
	ROM Size: 64 kB
	Characteristics:
		PCI is supported
		EDD is supported
		Targeted content distribution is supported
	BIOS Revision: 4.11

+ echo '===== lshw-memory ====='
===== lshw-memory =====
+ lshw -short -c memory
H/W path    Device  Class          Description
==============================================
/0/0                memory         96KiB BIOS
/0/1000             memory         8GiB System Memory
/0/1000/0           memory         8GiB DIMM RAM
+ echo '===== numactl ====='
===== numactl =====
+ numactl -H
available: 1 nodes (0)
node 0 cpus: 0 1
node 0 size: 7935 MB
node 0 free: 6441 MB
node distances:
node   0 
  0:  10 
+ echo '===== cpu-freq ====='
===== cpu-freq =====
+ cat /proc/cpuinfo
+ grep -i mhz
cpu MHz		: 2299.998
cpu MHz		: 2299.998
