---> uname -a: Linux prd-ubuntu2404-robot-2c-8g-9120 6.8.0-138-generic #138-Ubuntu SMP PREEMPT_DYNAMIC Fri Jul 31 22:41:49 UTC 2026 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 lbrv nrip_save tsc_scale vmcb_clean flushbyasid pausefilter pfthreshold v_vmsave_vmload vgif 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 Indirect target selection: 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 Tsa: 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 802 5060 4 2372 7139 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:ca:32:17 brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.171.66/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 82614sec preferred_lft 82614sec inet6 fe80::f816:3eff:feca:3217/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 6.8.0-138-generic (prd-ubuntu2404-robot-2c-8g-9120) 09/18/26 _x86_64_ (2 CPU) 00:19:42 LINUX RESTART (2 CPU) 00:20:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 00:30:25 1.97 0.19 1.75 0.04 10.86 85.84 1.58 00:40:05 14.97 0.01 1.29 13.67 0.21 15.74 112820.12 00:50:25 1.34 0.00 1.32 0.02 0.00 15.39 0.70 01:00:25 27.81 3.16 22.28 2.38 267.02 3609.25 1614.08 01:10:05 1.49 0.00 1.47 0.02 0.00 54.77 0.86 01:20:25 1.36 0.00 1.34 0.02 0.01 91.06 0.77 Average: 8.04 0.56 4.89 2.60 46.11 641.73 18321.31 00:20:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 00:30:25 6272120 7519408 301020 3.70 30516 1423600 523512 5.70 443408 1183924 124 00:40:05 6264044 7511896 308396 3.79 30720 1423976 526332 5.73 445136 1184464 268 00:50:25 6265204 7513608 306692 3.77 30932 1424296 526532 5.73 445088 1185008 124 01:00:25 5160884 7387700 377952 4.65 87252 2300240 836464 9.11 608844 2061804 336 01:10:05 5143888 7381420 384288 4.73 87456 2310804 858580 9.35 614768 2072524 400 01:20:25 4998928 7261684 503800 6.19 87636 2335868 969588 10.56 733084 2097524 2372 Average: 5684178 7429286 363691 4.47 59085 1869797 706835 7.70 548388 1630875 604 00:20:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 00:30:25 lo 1.01 1.01 0.05 0.05 0.00 0.00 0.00 0.00 00:30:25 ens3 13.43 5.64 32.68 1.74 0.00 0.00 0.00 0.00 00:40:05 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 00:40:05 ens3 0.68 0.09 0.13 0.06 0.00 0.00 0.00 0.00 00:50:25 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 00:50:25 ens3 0.52 0.07 0.12 0.06 0.00 0.00 0.00 0.00 01:00:25 lo 1.32 1.32 0.08 0.08 0.00 0.00 0.00 0.00 01:00:25 ens3 73.55 53.35 327.27 12.20 0.00 0.00 0.00 0.00 01:10:05 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:10:05 ens3 36.53 31.07 7.70 3.71 0.00 0.00 0.00 0.00 01:20:25 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:20:25 ens3 45.22 43.79 10.11 6.24 0.00 0.00 0.00 0.00 Average: lo 1.05 1.05 0.05 0.05 0.00 0.00 0.00 0.00 Average: ens3 28.27 22.29 62.80 4.00 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 6.8.0-138-generic (prd-ubuntu2404-robot-2c-8g-9120) 09/18/26 _x86_64_ (2 CPU) 00:19:42 LINUX RESTART (2 CPU) 00:20:01 CPU %user %nice %system %iowait %steal %idle 00:30:25 all 0.53 0.00 0.34 0.01 0.01 99.11 00:30:25 0 0.36 0.00 0.31 0.01 0.01 99.31 00:30:25 1 0.70 0.00 0.37 0.01 0.01 98.91 00:40:05 all 0.34 0.00 0.11 0.04 0.01 99.49 00:40:05 0 0.36 0.00 0.10 0.02 0.01 99.51 00:40:05 1 0.32 0.00 0.12 0.06 0.01 99.48 00:50:25 all 0.29 0.00 0.09 0.01 0.01 99.60 00:50:25 0 0.18 0.00 0.08 0.02 0.01 99.71 00:50:25 1 0.40 0.00 0.10 0.00 0.01 99.49 01:00:25 all 13.04 0.00 2.26 0.88 0.02 83.80 01:00:25 0 11.14 0.00 2.22 1.38 0.02 85.24 01:00:25 1 14.94 0.00 2.30 0.37 0.03 82.36 01:10:05 all 3.21 0.00 0.58 0.02 0.03 96.16 01:10:05 0 3.51 0.00 0.57 0.02 0.03 95.87 01:10:05 1 2.92 0.00 0.59 0.02 0.03 96.44 01:20:25 all 5.31 0.00 0.71 0.01 0.04 93.94 01:20:25 0 4.85 0.00 0.70 0.01 0.04 94.39 01:20:25 1 5.76 0.00 0.71 0.00 0.03 93.49 Average: all 3.78 0.00 0.68 0.16 0.02 95.36 Average: 0 3.38 0.00 0.66 0.24 0.02 95.69 Average: 1 4.17 0.00 0.70 0.08 0.02 95.04