---> uname -a: Linux prd-ubuntu2404-robot-2c-8g-31242 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 8.0G 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 773 5109 4 2351 7168 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:46:aa:65 brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.171.81/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 81654sec preferred_lft 81654sec inet6 fe80::f816:3eff:fe46:aa65/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 6.8.0-90-generic (prd-ubuntu2404-robot-2c-8g-31242) 06/28/26 _x86_64_ (2 CPU) 00:16:15 LINUX RESTART (2 CPU) 00:20:12 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 00:30:01 1.58 0.03 1.54 0.02 1.27 19.41 889.53 00:40:01 24.71 3.01 19.39 2.32 227.62 3559.26 2235.05 00:50:00 1.82 0.25 1.55 0.02 31.02 85.01 144.12 01:00:00 1.59 0.00 1.54 0.04 1.05 24.78 1.53 01:10:01 1.41 0.00 1.39 0.02 0.00 132.74 382.93 01:20:02 1.30 0.00 1.28 0.02 0.00 33.57 1.24 01:30:01 1.48 0.00 1.45 0.02 0.00 24.06 0.45 Average: 4.85 0.47 4.03 0.35 37.41 556.16 521.44 00:20:12 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 00:30:01 6277612 7529612 290812 3.58 30664 1426944 524540 5.71 448804 1187480 124 00:40:01 5223504 7400692 366756 4.51 86064 2251480 630932 6.87 592104 2021848 1808 00:50:00 5140504 7345728 421620 5.18 86372 2279244 855684 9.32 624948 2041152 192 01:00:00 5151276 7358804 408552 5.02 86516 2281364 660800 7.20 623012 2043116 124 01:10:01 5113524 7356336 410732 5.05 86688 2316184 647088 7.05 607520 2078092 164 01:20:02 5031644 7280284 486712 5.98 86840 2321772 718484 7.83 678732 2083720 188 01:30:01 5074100 7324872 442056 5.44 86984 2323712 685072 7.46 645124 2085804 144 Average: 5287452 7370904 403891 4.97 78590 2171529 674657 7.35 602892 1934459 392 00:20:12 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 1.14 0.09 0.17 0.07 0.00 0.00 0.00 0.00 00:40:01 lo 1.31 1.31 0.08 0.08 0.00 0.00 0.00 0.00 00:40:01 ens3 67.65 46.38 317.03 12.08 0.00 0.00 0.00 0.00 00:50:00 lo 1.02 1.02 0.05 0.05 0.00 0.00 0.00 0.00 00:50:00 ens3 20.73 18.71 227.00 1.54 0.00 0.00 0.00 0.00 01:00:00 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:00:00 ens3 6.49 5.46 61.17 0.72 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 13.96 12.81 156.49 1.23 0.00 0.00 0.00 0.00 01:20:02 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:20:02 ens3 17.25 16.68 141.90 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 13.87 13.45 140.42 1.19 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 20.22 16.28 149.61 2.70 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 6.8.0-90-generic (prd-ubuntu2404-robot-2c-8g-31242) 06/28/26 _x86_64_ (2 CPU) 00:16:15 LINUX RESTART (2 CPU) 00:20:12 CPU %user %nice %system %iowait %steal %idle 00:30:01 all 0.27 0.00 0.19 0.02 0.03 99.50 00:30:01 0 0.26 0.00 0.19 0.04 0.02 99.49 00:30:01 1 0.27 0.00 0.19 0.01 0.03 99.50 00:40:01 all 12.18 0.00 1.79 3.34 0.05 82.64 00:40:01 0 9.45 0.00 1.65 2.85 0.05 86.00 00:40:01 1 14.90 0.00 1.94 3.83 0.06 79.27 00:50:00 all 1.02 0.00 0.27 0.03 0.05 98.63 00:50:00 0 0.97 0.00 0.13 0.01 0.03 98.86 00:50:00 1 1.07 0.00 0.41 0.05 0.07 98.40 01:00:00 all 3.29 0.00 0.47 0.03 0.06 96.16 01:00:00 0 1.98 0.00 0.33 0.03 0.05 97.62 01:00:00 1 4.63 0.00 0.61 0.03 0.07 94.67 01:10:01 all 5.05 0.00 0.52 0.03 0.07 94.33 01:10:01 0 5.38 0.00 0.51 0.05 0.06 94.00 01:10:01 1 4.73 0.00 0.54 0.01 0.07 94.65 01:20:02 all 1.93 0.00 0.31 0.02 0.06 97.67 01:20:02 0 2.47 0.00 0.36 0.01 0.07 97.09 01:20:02 1 1.39 0.00 0.27 0.04 0.04 98.26 01:30:01 all 0.92 0.00 0.32 0.02 0.06 98.69 01:30:01 0 0.87 0.00 0.28 0.02 0.05 98.78 01:30:01 1 0.97 0.00 0.36 0.03 0.06 98.59 Average: all 3.53 0.00 0.56 0.50 0.05 95.36 Average: 0 3.06 0.00 0.49 0.43 0.05 95.97 Average: 1 4.00 0.00 0.62 0.58 0.06 94.75