---> uname -a: Linux prd-ubuntu2404-robot-2c-8g-4423 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: 5600.00 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 782 5259 4 2187 7159 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:96:ca:0a brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.170.157/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 84310sec preferred_lft 84310sec inet6 fe80::f816:3eff:fe96:ca0a/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-4423) 04/19/26 _x86_64_ (2 CPU) 00:16:06 LINUX RESTART (2 CPU) 00:20:19 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 00:30:01 1.59 0.03 1.55 0.01 1.28 18.84 673.72 00:40:01 35.45 3.03 17.14 15.28 227.92 3116.19 108404.37 00:50:12 4.00 0.06 3.07 0.86 3.12 189.50 2279.59 Average: 13.74 1.04 7.28 5.41 77.76 1113.62 37277.09 00:20:19 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 00:30:01 6294264 7540156 280288 3.45 30596 1421172 531236 5.79 439680 1183292 264 00:40:01 5378048 7456568 315560 3.88 84004 2159188 566528 6.17 538648 1929132 2320 00:50:12 5450688 7361692 419920 5.16 85908 1998348 664072 7.23 638352 1769700 25344 Average: 5707667 7452805 338589 4.16 66836 1859569 587279 6.40 538893 1627375 9309 00:20:19 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 00:30:01 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 00:30:01 ens3 0.77 0.08 0.11 0.04 0.00 0.00 0.00 0.00 00:40:01 lo 1.31 1.31 0.10 0.10 0.00 0.00 0.00 0.00 00:40:01 ens3 102.21 70.17 306.48 17.18 0.00 0.00 0.00 0.00 00:50:12 lo 1.04 1.04 0.05 0.05 0.00 0.00 0.00 0.00 00:50:12 ens3 24.57 16.46 14.46 6.01 0.00 0.00 0.00 0.00 Average: lo 1.12 1.12 0.07 0.07 0.00 0.00 0.00 0.00 Average: ens3 42.83 29.12 107.54 7.81 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 6.8.0-90-generic (prd-ubuntu2404-robot-2c-8g-4423) 04/19/26 _x86_64_ (2 CPU) 00:16:06 LINUX RESTART (2 CPU) 00:20:19 CPU %user %nice %system %iowait %steal %idle 00:30:01 all 0.31 0.00 0.17 0.01 0.04 99.46 00:30:01 0 0.32 0.00 0.16 0.02 0.04 99.47 00:30:01 1 0.31 0.00 0.18 0.01 0.04 99.46 00:40:01 all 10.86 0.00 1.69 0.63 0.05 86.76 00:40:01 0 11.56 0.00 1.86 0.82 0.05 85.71 00:40:01 1 10.16 0.00 1.53 0.45 0.06 87.80 00:50:12 all 6.97 0.00 0.69 0.06 0.07 92.21 00:50:12 0 7.26 0.00 0.77 0.01 0.07 91.89 00:50:12 1 6.68 0.00 0.61 0.11 0.07 92.53 Average: all 6.11 0.00 0.86 0.24 0.05 92.74 Average: 0 6.44 0.00 0.93 0.28 0.05 92.29 Average: 1 5.77 0.00 0.78 0.19 0.06 93.20