---> uname -a: Linux prd-ubuntu2404-robot-2c-8g-1618 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: 5599.94 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 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 759 5195 4 2275 7182 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:9b:ad:9d brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.171.35/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 80728sec preferred_lft 80728sec inet6 fe80::f816:3eff:fe9b:ad9d/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-1618) 04/10/26 _x86_64_ (2 CPU) 00:40:27 LINUX RESTART (2 CPU) 00:50:06 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 01:00:01 2.11 0.32 1.76 0.03 39.34 75.28 439.23 01:10:06 1.32 0.00 1.31 0.00 1.05 15.08 0.05 01:20:11 13.95 0.00 1.49 12.45 0.16 17.09 108183.94 01:30:01 1.74 0.00 1.71 0.03 0.00 20.77 223.00 01:40:06 1.37 0.00 1.35 0.02 0.00 15.98 1.19 01:50:04 1.81 0.42 1.39 0.01 16.08 47.84 0.37 02:00:01 13.88 1.37 11.52 0.99 102.15 2036.46 989.24 02:10:15 11.54 1.25 9.06 1.23 109.18 1182.93 676.74 Average: 5.99 0.42 3.71 1.86 33.63 427.52 13906.07 00:50:06 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 01:00:01 6252104 7531676 288128 3.54 30944 1453868 723036 7.88 461936 1204232 236 01:10:06 6259668 7540044 279920 3.44 31100 1454508 524888 5.72 456684 1204716 180 01:20:11 6259416 7540404 279484 3.44 31316 1454884 524888 5.72 460232 1205280 164 01:30:01 6264360 7545948 273868 3.37 31580 1455212 525016 5.72 460188 1205872 244 01:40:06 6270476 7552720 267040 3.28 31780 1455664 525560 5.72 461172 1206396 204 01:50:04 6232020 7529400 289992 3.57 32100 1470416 542228 5.91 486040 1219932 324 02:00:01 5536752 7387620 397216 4.88 69860 1956468 635196 6.92 593416 1728832 244 02:10:15 5255192 7407752 363728 4.47 85656 2230940 647940 7.06 603064 1989756 3996 Average: 6041248 7504446 304922 3.75 43042 1616495 581094 6.33 497842 1370627 699 00:50:06 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 01:00:01 lo 1.02 1.02 0.05 0.05 0.00 0.00 0.00 0.00 01:00:01 ens3 0.72 0.23 3.12 0.05 0.00 0.00 0.00 0.00 01:10:06 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:10:06 ens3 0.41 0.06 0.08 0.03 0.00 0.00 0.00 0.00 01:20:11 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:20:11 ens3 0.45 0.11 0.12 0.06 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 0.29 0.05 0.07 0.03 0.00 0.00 0.00 0.00 01:40:06 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:40:06 ens3 0.59 0.27 0.15 0.63 0.00 0.00 0.00 0.00 01:50:04 lo 1.01 1.01 0.05 0.05 0.00 0.00 0.00 0.00 01:50:04 ens3 9.48 4.85 20.00 2.66 0.00 0.00 0.00 0.00 02:00:01 lo 1.15 1.15 0.06 0.06 0.00 0.00 0.00 0.00 02:00:01 ens3 29.50 18.42 241.71 3.36 0.00 0.00 0.00 0.00 02:10:15 lo 1.15 1.15 0.07 0.07 0.00 0.00 0.00 0.00 02:10:15 ens3 39.26 30.14 62.00 8.81 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 10.16 6.83 40.83 1.97 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 6.8.0-90-generic (prd-ubuntu2404-robot-2c-8g-1618) 04/10/26 _x86_64_ (2 CPU) 00:40:27 LINUX RESTART (2 CPU) 00:50:06 CPU %user %nice %system %iowait %steal %idle 01:00:01 all 0.43 0.00 0.21 0.04 0.03 99.29 01:00:01 0 0.30 0.00 0.21 0.04 0.04 99.41 01:00:01 1 0.55 0.00 0.22 0.03 0.03 99.17 01:10:06 all 0.23 0.00 0.08 0.06 0.02 99.61 01:10:06 0 0.38 0.00 0.06 0.09 0.02 99.45 01:10:06 1 0.08 0.00 0.09 0.03 0.02 99.78 01:20:11 all 0.26 0.00 0.10 0.14 0.02 99.48 01:20:11 0 0.45 0.00 0.07 0.16 0.02 99.31 01:20:11 1 0.08 0.00 0.13 0.11 0.02 99.66 01:30:01 all 0.28 0.00 0.18 0.06 0.02 99.46 01:30:01 0 0.32 0.00 0.17 0.02 0.02 99.47 01:30:01 1 0.23 0.00 0.20 0.10 0.02 99.45 01:40:06 all 0.25 0.00 0.07 0.01 0.02 99.65 01:40:06 0 0.12 0.00 0.07 0.01 0.03 99.77 01:40:06 1 0.38 0.00 0.07 0.01 0.02 99.52 01:50:04 all 0.50 0.00 0.09 0.12 0.03 99.26 01:50:04 0 0.27 0.00 0.12 0.13 0.04 99.44 01:50:04 1 0.72 0.00 0.07 0.11 0.02 99.08 02:00:01 all 5.39 0.00 0.94 1.28 0.04 92.36 02:00:01 0 6.31 0.00 0.92 0.88 0.03 91.85 02:00:01 1 4.47 0.00 0.96 1.67 0.04 92.87 02:10:15 all 10.28 0.00 0.93 0.46 0.04 88.28 02:10:15 0 13.56 0.00 0.95 0.60 0.05 84.84 02:10:15 1 7.00 0.00 0.90 0.33 0.04 91.73 Average: all 2.22 0.00 0.33 0.27 0.03 97.15 Average: 0 2.74 0.00 0.32 0.24 0.03 96.66 Average: 1 1.70 0.00 0.33 0.30 0.03 97.65