---> uname -a: Linux prd-ubuntu2404-robot-2c-8g-37646 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 8.1G 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 767 5036 4 2439 7174 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:b6:c1:ed brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.170.123/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 81312sec preferred_lft 81312sec inet6 fe80::f816:3eff:feb6:c1ed/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-37646) 07/22/26 _x86_64_ (2 CPU) 00:39:47 LINUX RESTART (2 CPU) 00:40:00 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 00:50:03 17.97 2.98 2.48 12.51 377.84 2218.21 109026.73 01:00:03 15.81 13.55 2.19 0.08 151.18 46.83 667.16 01:10:03 1.35 0.00 1.33 0.02 0.00 15.11 1.20 01:20:03 1.30 0.00 1.28 0.02 0.01 14.71 1.09 01:30:03 1.56 0.00 1.53 0.03 0.00 17.95 649.96 01:40:03 1.32 0.00 1.31 0.02 0.00 15.16 1.20 01:50:03 1.35 0.00 1.34 0.02 0.00 15.49 1.09 02:00:03 26.30 2.86 21.07 2.37 225.81 3743.79 1063.71 Average: 8.38 2.42 4.06 1.89 94.53 761.81 13985.55 00:40:00 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 00:50:03 6259404 7533228 286368 3.52 30732 1448372 731324 7.97 454040 1200996 240 01:00:03 6195696 7526688 283796 3.49 34928 1493004 731396 7.97 454804 1249216 236 01:10:03 6199460 7531000 279472 3.44 35144 1493328 731600 7.97 454948 1249756 212 01:20:03 6198496 7530556 279900 3.44 35344 1493640 731624 7.97 455516 1250268 180 01:30:03 6191528 7524160 286208 3.52 35544 1493984 731680 7.97 455676 1250812 248 01:40:03 6193156 7526436 283912 3.49 35736 1494440 731744 7.97 456012 1251328 232 01:50:03 6192904 7526728 283648 3.49 35948 1494760 731744 7.97 456124 1251864 244 02:00:03 5054352 7372088 366200 4.50 91384 2375380 853872 9.30 605692 2142316 1720 Average: 6060624 7508860 293688 3.61 41845 1598364 746873 8.13 474102 1355820 414 00:40:00 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 00:50:03 lo 1.01 1.01 0.05 0.05 0.00 0.00 0.00 0.00 00:50:03 ens3 15.23 7.30 36.12 1.90 0.00 0.00 0.00 0.00 01:00:03 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:00:03 ens3 0.50 0.08 0.07 0.04 0.00 0.00 0.00 0.00 01:10:03 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:10:03 ens3 0.43 0.06 0.24 0.03 0.00 0.00 0.00 0.00 01:20:03 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:20:03 ens3 0.43 0.08 0.10 0.05 0.00 0.00 0.00 0.00 01:30:03 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:30:03 ens3 0.36 0.20 0.09 0.50 0.00 0.00 0.00 0.00 01:40:03 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:40:03 ens3 0.38 0.09 0.11 0.06 0.00 0.00 0.00 0.00 01:50:03 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:50:03 ens3 0.34 0.12 0.12 0.06 0.00 0.00 0.00 0.00 02:00:03 lo 1.31 1.31 0.08 0.08 0.00 0.00 0.00 0.00 02:00:03 ens3 81.57 64.89 355.49 15.58 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 12.41 9.10 49.04 2.28 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 6.8.0-90-generic (prd-ubuntu2404-robot-2c-8g-37646) 07/22/26 _x86_64_ (2 CPU) 00:39:47 LINUX RESTART (2 CPU) 00:40:00 CPU %user %nice %system %iowait %steal %idle 00:50:03 all 0.69 0.00 0.28 0.08 0.03 98.92 00:50:03 0 0.46 0.00 0.29 0.09 0.04 99.12 00:50:03 1 0.91 0.00 0.27 0.07 0.02 98.72 01:00:03 all 0.26 0.17 0.24 0.13 0.03 99.17 01:00:03 0 0.07 0.32 0.32 0.21 0.03 99.05 01:00:03 1 0.45 0.02 0.16 0.06 0.02 99.30 01:10:03 all 0.26 0.00 0.07 0.01 0.03 99.64 01:10:03 0 0.34 0.00 0.06 0.01 0.03 99.56 01:10:03 1 0.17 0.00 0.08 0.01 0.03 99.72 01:20:03 all 0.28 0.00 0.07 0.01 0.03 99.61 01:20:03 0 0.12 0.00 0.09 0.02 0.03 99.74 01:20:03 1 0.43 0.00 0.06 0.00 0.02 99.48 01:30:03 all 0.30 0.00 0.15 0.01 0.03 99.51 01:30:03 0 0.33 0.00 0.15 0.01 0.02 99.49 01:30:03 1 0.27 0.00 0.16 0.01 0.03 99.54 01:40:03 all 0.27 0.00 0.07 0.01 0.02 99.63 01:40:03 0 0.44 0.00 0.05 0.01 0.02 99.49 01:40:03 1 0.11 0.00 0.09 0.01 0.03 99.77 01:50:03 all 0.23 0.00 0.07 0.01 0.02 99.66 01:50:03 0 0.42 0.00 0.06 0.02 0.02 99.49 01:50:03 1 0.05 0.00 0.08 0.00 0.03 99.84 02:00:03 all 17.24 0.00 1.98 0.57 0.06 80.15 02:00:03 0 16.46 0.00 2.12 0.69 0.06 80.67 02:00:03 1 18.01 0.00 1.83 0.45 0.07 79.64 Average: all 2.44 0.02 0.37 0.10 0.03 97.04 Average: 0 2.33 0.04 0.39 0.13 0.03 97.08 Average: 1 2.54 0.00 0.34 0.07 0.03 97.01