---> uname -a: Linux prd-ubuntu2404-robot-2c-8g-137 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: 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 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 8.0G 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 767 5124 4 2351 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:41:61:cd brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.171.247/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 81449sec preferred_lft 81449sec inet6 fe80::f816:3eff:fe41:61cd/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-137) 09/05/26 _x86_64_ (2 CPU) 01:06:56 LINUX RESTART (2 CPU) 01:10:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 01:20:06 16.23 13.76 2.40 0.07 193.57 134.59 41.89 01:30:06 1.52 0.01 1.50 0.02 0.04 18.80 10.32 01:40:01 1.31 0.00 1.31 0.00 0.00 15.59 0.00 01:50:26 1.35 0.00 1.35 0.00 0.00 16.16 0.00 02:00:26 1.62 0.00 1.61 0.02 0.00 19.71 0.37 02:10:01 1.18 0.00 1.18 0.00 0.00 14.54 0.00 02:20:26 1.13 0.00 1.13 0.00 0.00 14.19 0.00 Average: 3.48 1.97 1.50 0.02 27.74 33.42 7.52 01:10:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 01:20:06 6167584 7515384 294876 3.63 34900 1510648 729832 7.95 462524 1264372 156 01:30:06 6169956 7518324 291820 3.59 35108 1510980 729824 7.95 462500 1264912 212 01:40:01 6184124 7532940 277172 3.41 35260 1511304 730040 7.95 462792 1265360 272 01:50:26 6188924 7538276 271856 3.34 35436 1511628 730228 7.95 463040 1265888 164 02:00:26 6171096 7521112 288972 3.55 35608 1512096 730856 7.96 464040 1266400 132 02:10:01 6178936 7529428 280644 3.45 35760 1512416 730856 7.96 464072 1266868 172 02:20:26 6183644 7534624 275444 3.39 35912 1512744 730856 7.96 464004 1267352 184 Average: 6177752 7527155 282969 3.48 35426 1511688 730356 7.96 463282 1265879 185 01:10:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 01:20:06 lo 1.04 1.04 0.05 0.05 0.00 0.00 0.00 0.00 01:20:06 ens3 2.48 0.46 6.16 0.12 0.00 0.00 0.00 0.00 01:30:06 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:30:06 ens3 0.51 0.06 0.08 0.04 0.00 0.00 0.00 0.00 01:40:01 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:40:01 ens3 0.46 0.06 0.08 0.04 0.00 0.00 0.00 0.00 01:50:26 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:50:26 ens3 0.58 0.14 0.16 0.10 0.00 0.00 0.00 0.00 02:00:26 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 02:00:26 ens3 0.42 0.19 0.07 0.66 0.00 0.00 0.00 0.00 02:10:01 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 02:10:01 ens3 0.21 0.03 0.04 0.01 0.00 0.00 0.00 0.00 02:20:26 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 02:20:26 ens3 0.22 0.03 0.04 0.01 0.00 0.00 0.00 0.00 Average: lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 Average: ens3 0.70 0.14 0.95 0.14 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 6.8.0-138-generic (prd-ubuntu2404-robot-2c-8g-137) 09/05/26 _x86_64_ (2 CPU) 01:06:56 LINUX RESTART (2 CPU) 01:10:01 CPU %user %nice %system %iowait %steal %idle 01:20:06 all 0.44 0.15 0.21 0.18 0.00 99.02 01:20:06 0 0.58 0.29 0.27 0.35 0.00 98.50 01:20:06 1 0.29 0.00 0.15 0.02 0.00 99.53 01:30:06 all 0.28 0.00 0.17 0.01 0.01 99.53 01:30:06 0 0.33 0.00 0.16 0.03 0.01 99.49 01:30:06 1 0.24 0.00 0.19 0.00 0.01 99.57 01:40:01 all 0.28 0.00 0.08 0.01 0.01 99.62 01:40:01 0 0.49 0.00 0.05 0.03 0.01 99.43 01:40:01 1 0.07 0.00 0.12 0.00 0.01 99.80 01:50:26 all 0.25 0.00 0.08 0.04 0.00 99.63 01:50:26 0 0.45 0.00 0.06 0.04 0.00 99.45 01:50:26 1 0.05 0.00 0.11 0.04 0.00 99.80 02:00:26 all 0.30 0.00 0.18 0.01 0.00 99.50 02:00:26 0 0.50 0.00 0.15 0.02 0.00 99.33 02:00:26 1 0.10 0.00 0.22 0.01 0.00 99.67 02:10:01 all 0.25 0.00 0.07 0.01 0.00 99.67 02:10:01 0 0.45 0.00 0.05 0.02 0.00 99.48 02:10:01 1 0.04 0.00 0.09 0.00 0.00 99.86 02:20:26 all 0.24 0.00 0.07 0.01 0.00 99.67 02:20:26 0 0.44 0.00 0.05 0.00 0.00 99.51 02:20:26 1 0.04 0.00 0.09 0.02 0.00 99.84 Average: all 0.29 0.02 0.12 0.04 0.00 99.52 Average: 0 0.46 0.04 0.11 0.07 0.00 99.31 Average: 1 0.12 0.00 0.14 0.01 0.00 99.72