---> uname -a: Linux prd-ubuntu2404-robot-2c-8g-12398 6.8.0-90-generic #91-Ubuntu SMP PREEMPT_DYNAMIC Tue Nov 18 14:14:30 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux ---> lscpu: Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Address sizes: 40 bits physical, 48 bits virtual Byte Order: Little Endian CPU(s): 2 On-line CPU(s) list: 0,1 Vendor ID: AuthenticAMD Model name: AMD EPYC-Rome Processor CPU family: 23 Model: 49 Thread(s) per core: 1 Core(s) per socket: 1 Socket(s): 2 Stepping: 0 BogoMIPS: 5599.99 Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm rep_good nopl cpuid extd_apicid tsc_known_freq pni pclmulqdq ssse3 fma cx16 sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm cmp_legacy svm cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw topoext perfctr_core ssbd ibrs ibpb stibp vmmcall fsgsbase tsc_adjust bmi1 avx2 smep bmi2 rdseed adx smap clflushopt clwb sha_ni xsaveopt xsavec xgetbv1 clzero xsaveerptr wbnoinvd arat npt nrip_save umip rdpid arch_capabilities Virtualization: AMD-V Hypervisor vendor: KVM Virtualization type: full L1d cache: 64 KiB (2 instances) L1i cache: 64 KiB (2 instances) L2 cache: 1 MiB (2 instances) L3 cache: 32 MiB (2 instances) NUMA node(s): 1 NUMA node0 CPU(s): 0,1 Vulnerability Gather data sampling: Not affected Vulnerability Itlb multihit: Not affected Vulnerability L1tf: Not affected Vulnerability Mds: Not affected Vulnerability Meltdown: Not affected Vulnerability Mmio stale data: Not affected Vulnerability Reg file data sampling: Not affected Vulnerability Retbleed: Mitigation; untrained return thunk; SMT disabled Vulnerability Spec rstack overflow: Vulnerable: Safe RET, no microcode Vulnerability Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl Vulnerability Spectre v1: Mitigation; usercopy/swapgs barriers and __user pointer sanitization Vulnerability Spectre v2: Mitigation; Retpolines; IBPB conditional; STIBP disabled; RSB filling; PBRSB-eIBRS Not affected; BHI Not affected Vulnerability Srbds: Not affected Vulnerability Tsx async abort: Not affected Vulnerability Vmscape: Not affected ---> nproc: 2 ---> df -h: Filesystem Size Used Avail Use% Mounted on tmpfs 795M 1.1M 794M 1% /run /dev/vda1 38G 7.9G 30G 21% / tmpfs 3.9G 0 3.9G 0% /dev/shm tmpfs 5.0M 0 5.0M 0% /run/lock /dev/vda16 881M 117M 703M 15% /boot /dev/vda15 105M 6.2M 99M 6% /boot/efi tmpfs 795M 16K 795M 1% /run/user/1001 ---> free -m: total used free shared buff/cache available Mem: 7941 742 5225 4 2262 7199 Swap: 1023 0 1023 ---> ip addr: 1: lo: mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host noprefixroute valid_lft forever preferred_lft forever 2: ens3: mtu 1458 qdisc mq state UP group default qlen 1000 link/ether fa:16:3e:ed:d7:c8 brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.170.137/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 84278sec preferred_lft 84278sec inet6 fe80::f816:3eff:feed:d7c8/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 6.8.0-90-generic (prd-ubuntu2404-robot-2c-8g-12398) 05/10/26 _x86_64_ (2 CPU) 00:16:49 LINUX RESTART (2 CPU) 00:20:20 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 00:30:20 16.77 2.11 13.06 1.60 158.43 2355.27 1037.79 00:40:20 8.61 1.36 6.54 0.71 108.04 1082.31 401.09 00:50:07 15.06 0.00 1.33 13.72 0.15 71.73 108881.90 Average: 13.47 1.16 7.02 5.28 89.49 1177.38 36273.81 00:20:20 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 00:30:20 5487172 7398732 381996 4.70 72392 2010940 586040 6.38 543560 1786208 62400 00:40:20 5266748 7408280 362788 4.46 84924 2220500 693508 7.55 600380 1980988 2736 00:50:07 5250172 7405776 365264 4.49 85052 2234436 674188 7.34 605844 1995024 240 Average: 5334697 7404263 370016 4.55 80789 2155292 651245 7.09 583261 1920740 21792 00:20:20 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 00:30:20 lo 1.25 1.25 0.07 0.07 0.00 0.00 0.00 0.00 00:30:20 ens3 42.26 25.14 268.23 6.74 0.00 0.00 0.00 0.00 00:40:20 lo 1.09 1.09 0.06 0.06 0.00 0.00 0.00 0.00 00:40:20 ens3 121.72 100.23 62.81 15.09 0.00 0.00 0.00 0.00 00:50:07 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 00:50:07 ens3 47.82 47.86 9.87 4.27 0.00 0.00 0.00 0.00 Average: lo 1.11 1.11 0.06 0.06 0.00 0.00 0.00 0.00 Average: ens3 70.76 57.81 114.36 8.73 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 6.8.0-90-generic (prd-ubuntu2404-robot-2c-8g-12398) 05/10/26 _x86_64_ (2 CPU) 00:16:49 LINUX RESTART (2 CPU) 00:20:20 CPU %user %nice %system %iowait %steal %idle 00:30:20 all 7.64 0.00 1.22 0.39 0.05 90.71 00:30:20 0 7.19 0.00 1.12 0.19 0.05 91.46 00:30:20 1 8.09 0.00 1.32 0.58 0.06 89.95 00:40:20 all 8.90 0.00 1.55 0.16 0.07 89.32 00:40:20 0 8.73 0.00 1.58 0.24 0.07 89.37 00:40:20 1 9.08 0.00 1.52 0.07 0.06 89.27 00:50:07 all 5.85 0.00 0.82 0.05 0.07 93.20 00:50:07 0 5.49 0.00 0.79 0.03 0.07 93.62 00:50:07 1 6.22 0.00 0.86 0.06 0.08 92.78 Average: all 7.48 0.00 1.20 0.20 0.06 91.06 Average: 0 7.15 0.00 1.17 0.16 0.06 91.47 Average: 1 7.81 0.00 1.23 0.24 0.07 90.65