---> uname -a: Linux prd-ubuntu2404-robot-2c-8g-4424 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 8.1G 30G 22% / 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 792 4968 4 2478 7148 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:8d:02:3c brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.171.90/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 81710sec preferred_lft 81710sec inet6 fe80::f816:3eff:fe8d:23c/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-4424) 04/19/26 _x86_64_ (2 CPU) 00:16:09 LINUX RESTART (2 CPU) 00:20:16 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 00:30:01 1.67 0.03 1.63 0.01 1.27 844.76 670.15 00:40:01 22.85 3.34 17.27 2.24 267.73 3196.37 970.20 00:50:13 15.19 13.29 1.83 0.07 147.92 45.68 7.30 01:00:01 15.23 0.00 1.46 13.77 0.15 19.40 108966.50 01:10:01 1.33 0.00 1.30 0.02 0.00 186.78 3.79 01:20:13 1.62 0.00 1.59 0.03 0.00 213.12 4.05 01:30:01 1.75 0.00 1.70 0.04 0.00 21.96 4.36 Average: 8.54 2.42 3.84 2.28 60.19 646.93 15547.33 00:20:16 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 00:30:01 6283588 7530228 290128 3.57 30608 1421656 531144 5.79 441756 1183316 124 00:40:01 5262448 7370876 400644 4.93 84440 2188044 663488 7.23 625408 1946744 124 00:50:13 4850280 7014916 747836 9.20 87812 2232776 917184 9.99 880196 1994208 360 01:00:01 4972224 7137588 625084 7.69 87968 2233296 894212 9.74 840064 1994888 124 01:10:01 5020448 7237976 524344 6.45 88152 2284928 808620 8.81 755808 2046640 260 01:20:13 4819024 7097292 663832 8.16 88384 2344632 982544 10.70 880020 2106544 220 01:30:01 4825720 7104920 656364 8.07 88572 2345324 926300 10.09 874112 2107200 196 Average: 5147676 7213399 558319 6.87 79419 2150094 817642 8.91 756766 1911363 201 00:20:16 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 0.78 0.10 0.11 0.04 0.00 0.00 0.00 0.00 00:40:01 lo 1.32 1.32 0.08 0.08 0.00 0.00 0.00 0.00 00:40:01 ens3 61.85 42.58 315.02 11.45 0.00 0.00 0.00 0.00 00:50:13 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 00:50:13 ens3 45.48 40.99 677.57 2.83 0.00 0.00 0.00 0.00 01:00:01 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:00:01 ens3 77.08 74.24 1226.68 4.88 0.00 0.00 0.00 0.00 01:10:01 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:10:01 ens3 29.25 26.99 439.24 1.83 0.00 0.00 0.00 0.00 01:20:13 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:20:13 ens3 31.97 29.98 493.61 1.98 0.00 0.00 0.00 0.00 01:30:01 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:30:01 ens3 19.83 18.07 282.67 1.26 0.00 0.00 0.00 0.00 Average: lo 1.04 1.04 0.05 0.05 0.00 0.00 0.00 0.00 Average: ens3 38.11 33.33 491.40 3.48 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 6.8.0-90-generic (prd-ubuntu2404-robot-2c-8g-4424) 04/19/26 _x86_64_ (2 CPU) 00:16:09 LINUX RESTART (2 CPU) 00:20:16 CPU %user %nice %system %iowait %steal %idle 00:30:01 all 0.25 0.00 0.18 0.02 0.04 99.52 00:30:01 0 0.25 0.00 0.18 0.02 0.04 99.51 00:30:01 1 0.26 0.00 0.17 0.01 0.04 99.52 00:40:01 all 11.01 0.00 1.67 0.57 0.05 86.70 00:40:01 0 12.69 0.00 1.78 0.63 0.05 84.85 00:40:01 1 9.33 0.00 1.56 0.50 0.05 88.56 00:50:13 all 0.74 0.17 0.42 0.14 0.08 98.44 00:50:13 0 0.71 0.10 0.35 0.09 0.08 98.67 00:50:13 1 0.77 0.24 0.48 0.20 0.09 98.21 01:00:01 all 1.05 0.00 0.65 0.04 0.07 98.20 01:00:01 0 1.41 0.00 0.88 0.06 0.07 97.58 01:00:01 1 0.69 0.00 0.41 0.02 0.07 98.81 01:10:01 all 0.73 0.00 0.26 0.02 0.07 98.92 01:10:01 0 0.62 0.00 0.27 0.03 0.06 99.03 01:10:01 1 0.84 0.00 0.25 0.01 0.09 98.82 01:20:13 all 0.78 0.00 0.23 0.02 0.08 98.89 01:20:13 0 0.57 0.00 0.10 0.01 0.05 99.26 01:20:13 1 0.99 0.00 0.36 0.02 0.12 98.51 01:30:01 all 0.55 0.00 0.32 0.01 0.08 99.04 01:30:01 0 0.51 0.00 0.19 0.01 0.05 99.24 01:30:01 1 0.58 0.00 0.44 0.02 0.11 98.84 Average: all 2.17 0.03 0.53 0.12 0.07 97.09 Average: 0 2.40 0.02 0.53 0.12 0.06 96.87 Average: 1 1.93 0.04 0.53 0.11 0.08 97.31