---> uname -a: Linux prd-ubuntu2404-robot-2c-8g-4181 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 823 5089 4 2318 7118 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:e7:e2:2a brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.170.126/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 84261sec preferred_lft 84261sec inet6 fe80::f816:3eff:fee7:e22a/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-4181) 04/18/26 _x86_64_ (2 CPU) 03:08:43 LINUX RESTART (2 CPU) 03:10:02 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 03:20:30 14.91 1.58 11.68 1.66 120.02 2359.42 546.97 03:30:01 1.61 0.01 1.58 0.02 0.06 125.86 0.95 03:40:33 14.08 0.00 1.31 12.76 0.14 49.29 101300.13 Average: 10.47 0.54 4.95 4.98 41.22 865.34 35126.78 03:10:02 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 03:20:30 5261404 7395236 376516 4.63 84192 2213820 715520 7.79 617024 1971720 1576 03:30:01 5223412 7387196 384076 4.72 84340 2243352 716024 7.80 617400 2001440 348 03:40:33 5212736 7389328 381648 4.69 84516 2255800 733288 7.99 618616 2014036 1940 Average: 5232517 7390587 380747 4.68 84349 2237657 721611 7.86 617680 1995732 1288 03:10:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 03:20:30 lo 1.18 1.18 0.07 0.07 0.00 0.00 0.00 0.00 03:20:30 ens3 80.13 58.02 115.70 12.42 0.00 0.00 0.00 0.00 03:30:01 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 03:30:01 ens3 52.22 51.74 24.43 5.36 0.00 0.00 0.00 0.00 03:40:33 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 03:40:33 ens3 38.26 31.82 18.90 3.79 0.00 0.00 0.00 0.00 Average: lo 1.06 1.06 0.06 0.06 0.00 0.00 0.00 0.00 Average: ens3 56.98 47.02 53.82 7.24 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 6.8.0-90-generic (prd-ubuntu2404-robot-2c-8g-4181) 04/18/26 _x86_64_ (2 CPU) 03:08:43 LINUX RESTART (2 CPU) 03:10:02 CPU %user %nice %system %iowait %steal %idle 03:20:30 all 10.35 0.00 1.30 0.23 0.05 88.07 03:20:30 0 6.88 0.00 1.08 0.18 0.05 91.81 03:20:30 1 13.83 0.00 1.52 0.27 0.06 84.32 03:30:01 all 6.52 0.00 0.96 0.01 0.06 92.44 03:30:01 0 7.96 0.00 1.03 0.01 0.07 90.93 03:30:01 1 5.09 0.00 0.89 0.02 0.06 93.95 03:40:33 all 5.26 0.00 0.50 0.03 0.06 94.15 03:40:33 0 5.10 0.00 0.57 0.06 0.06 94.21 03:40:33 1 5.41 0.00 0.43 0.01 0.06 94.09 Average: all 7.40 0.00 0.92 0.09 0.06 91.53 Average: 0 6.60 0.00 0.89 0.09 0.06 92.36 Average: 1 8.20 0.00 0.95 0.10 0.06 90.69