---> uname -a: Linux prd-ubuntu2404-robot-2c-8g-38622 6.8.0-136-generic #136-Ubuntu SMP PREEMPT_DYNAMIC Wed Jul 1 21:53:05 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: 5600.00 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 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 789 5170 4 2274 7152 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:6b:6c:ab brd ff:ff:ff:ff:ff:ff altname enp0s3 inet 10.30.171.154/23 metric 100 brd 10.30.171.255 scope global dynamic ens3 valid_lft 83286sec preferred_lft 83286sec inet6 fe80::f816:3eff:fe6b:6cab/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 6.8.0-136-generic (prd-ubuntu2404-robot-2c-8g-38622) 08/19/26 _x86_64_ (2 CPU) 00:40:10 LINUX RESTART (2 CPU) 00:50:33 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 01:00:00 26.83 2.99 21.38 2.45 237.21 3634.66 961.36 01:10:00 2.47 0.71 1.75 0.02 94.13 87.03 57.70 01:20:00 1.29 0.01 1.27 0.01 1.07 15.41 0.43 01:30:29 1.41 0.00 1.40 0.02 0.00 17.09 0.23 Average: 7.66 0.89 6.18 0.59 79.96 889.96 242.04 00:50:33 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 01:00:00 5214572 7394176 374032 4.60 85868 2254008 660804 7.20 604792 2026076 2724 01:10:00 5144940 7353604 414172 5.09 86308 2282608 847776 9.23 621804 2044800 124 01:20:00 5152276 7361752 406132 4.99 86456 2283272 661132 7.20 616144 2045300 168 01:30:29 5422704 7443756 332732 4.09 86616 2102452 588428 6.41 573404 1864512 952 Average: 5233623 7388322 381767 4.69 86312 2230585 689535 7.51 604036 1995172 992 00:50:33 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 01:00:00 lo 1.31 1.31 0.08 0.08 0.00 0.00 0.00 0.00 01:00:00 ens3 71.85 48.45 339.63 12.03 0.00 0.00 0.00 0.00 01:10:00 lo 1.03 1.03 0.05 0.05 0.00 0.00 0.00 0.00 01:10:00 ens3 4.36 0.75 3.87 0.24 0.00 0.00 0.00 0.00 01:20:00 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:20:00 ens3 0.99 0.26 0.17 0.08 0.00 0.00 0.00 0.00 01:30:29 lo 1.00 1.00 0.05 0.05 0.00 0.00 0.00 0.00 01:30:29 ens3 3.04 1.73 13.19 0.37 0.00 0.00 0.00 0.00 Average: lo 1.08 1.08 0.06 0.06 0.00 0.00 0.00 0.00 Average: ens3 19.14 12.17 84.82 3.02 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 6.8.0-136-generic (prd-ubuntu2404-robot-2c-8g-38622) 08/19/26 _x86_64_ (2 CPU) 00:40:10 LINUX RESTART (2 CPU) 00:50:33 CPU %user %nice %system %iowait %steal %idle 01:00:00 all 12.65 0.00 1.96 0.49 0.06 84.84 01:00:00 0 15.76 0.00 2.26 0.71 0.06 81.21 01:00:00 1 9.54 0.00 1.67 0.27 0.06 88.46 01:10:00 all 0.52 0.00 0.16 0.03 0.08 99.21 01:10:00 0 0.51 0.00 0.11 0.04 0.06 99.28 01:10:00 1 0.53 0.00 0.21 0.02 0.10 99.14 01:20:00 all 0.38 0.00 0.12 0.03 0.09 99.38 01:20:00 0 0.39 0.00 0.13 0.06 0.10 99.33 01:20:00 1 0.36 0.00 0.12 0.01 0.08 99.43 01:30:29 all 0.49 0.00 0.25 0.02 0.08 99.16 01:30:29 0 0.42 0.00 0.27 0.00 0.11 99.20 01:30:29 1 0.57 0.00 0.24 0.04 0.04 99.11 Average: all 3.35 0.00 0.60 0.14 0.08 95.83 Average: 0 4.07 0.00 0.66 0.19 0.08 95.00 Average: 1 2.63 0.00 0.54 0.08 0.07 96.67