---> uname -a: Linux prd-ubuntu2004-memcached-4c-4g-2707 5.4.0-148-generic #165-Ubuntu SMP Tue Apr 18 08:53:12 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux ---> lscpu: Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian Address sizes: 40 bits physical, 48 bits virtual CPU(s): 4 On-line CPU(s) list: 0-3 Thread(s) per core: 1 Core(s) per socket: 1 Socket(s): 4 NUMA node(s): 1 Vendor ID: AuthenticAMD CPU family: 23 Model: 49 Model name: AMD EPYC-Rome Processor Stepping: 0 CPU MHz: 2800.000 BogoMIPS: 5600.00 Virtualization: AMD-V Hypervisor vendor: KVM Virtualization type: full L1d cache: 128 KiB L1i cache: 128 KiB L2 cache: 2 MiB L3 cache: 64 MiB NUMA node0 CPU(s): 0-3 Vulnerability Itlb multihit: Not affected Vulnerability L1tf: Not affected Vulnerability Mds: Not affected Vulnerability Meltdown: Not affected Vulnerability Mmio stale data: Not affected Vulnerability Retbleed: Vulnerable Vulnerability Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl and seccomp Vulnerability Spectre v1: Mitigation; usercopy/swapgs barriers and __user pointer sanitization Vulnerability Spectre v2: Mitigation; Retpolines, IBPB conditional, IBRS_FW, STIBP disabled, RSB filling, PBRSB-eIBRS Not affected Vulnerability Srbds: Not affected Vulnerability Tsx async abort: Not affected 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 xsaves clzero xsaveerptr wbnoinvd arat npt nrip_save umip rdpid arch_capabilities ---> nproc: 4 ---> df -h: Filesystem Size Used Avail Use% Mounted on udev 7.9G 0 7.9G 0% /dev tmpfs 1.6G 1.1M 1.6G 1% /run /dev/vda1 78G 8.7G 69G 12% / tmpfs 7.9G 0 7.9G 0% /dev/shm tmpfs 5.0M 0 5.0M 0% /run/lock tmpfs 7.9G 0 7.9G 0% /sys/fs/cgroup /dev/loop0 68M 68M 0 100% /snap/lxd/22753 /dev/vda15 105M 6.1M 99M 6% /boot/efi /dev/loop1 62M 62M 0 100% /snap/core20/1405 /dev/loop2 44M 44M 0 100% /snap/snapd/15177 tmpfs 1.6G 0 1.6G 0% /run/user/1001 ---> free -m: total used free shared buff/cache available Mem: 16009 657 12853 1 2499 15025 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 valid_lft forever preferred_lft forever 2: ens3: mtu 1458 qdisc mq state UP group default qlen 1000 link/ether fa:16:3e:8a:0e:e6 brd ff:ff:ff:ff:ff:ff inet 10.30.107.99/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86242sec preferred_lft 86242sec inet6 fe80::f816:3eff:fe8a:ee6/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-2707) 01/24/26 _x86_64_ (4 CPU) 19:18:28 LINUX RESTART (4 CPU) 19:19:02 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 19:20:01 142.37 18.06 124.30 0.00 496.59 14867.73 0.00 19:21:01 138.49 11.20 127.30 0.00 1106.75 18207.77 0.00 Average: 140.41 14.60 125.81 0.00 804.23 16551.78 0.00 19:19:02 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:20:01 13079580 14985656 1016896 6.20 87556 1990164 1740068 9.98 1210432 1812472 203552 19:21:01 13197048 15419728 575324 3.51 129044 2222148 1157268 6.63 868088 1991676 33328 Average: 13138314 15202692 796110 4.86 108300 2106156 1448668 8.31 1039260 1902074 118440 19:19:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 19:20:01 ens3 235.33 188.92 2939.15 35.96 0.00 0.00 0.00 0.00 19:20:01 lo 1.29 1.29 0.16 0.16 0.00 0.00 0.00 0.00 19:21:01 ens3 43.56 34.56 274.69 12.00 0.00 0.00 0.00 0.00 19:21:01 lo 1.13 1.13 0.12 0.12 0.00 0.00 0.00 0.00 Average: ens3 138.64 111.09 1595.72 23.88 0.00 0.00 0.00 0.00 Average: lo 1.21 1.21 0.14 0.14 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-2707) 01/24/26 _x86_64_ (4 CPU) 19:18:28 LINUX RESTART (4 CPU) 19:19:02 CPU %user %nice %system %iowait %steal %idle 19:20:01 all 26.86 0.00 2.00 2.54 0.06 68.53 19:20:01 0 14.77 0.00 1.34 1.13 0.03 82.73 19:20:01 1 16.49 0.00 1.76 5.67 0.09 75.99 19:20:01 2 51.45 0.00 3.50 2.97 0.08 41.99 19:20:01 3 24.72 0.00 1.41 0.41 0.05 73.41 19:21:01 all 20.84 0.00 1.71 2.24 0.08 75.14 19:21:01 0 39.31 0.00 2.40 1.00 0.07 57.22 19:21:01 1 5.77 0.00 1.19 3.92 0.08 89.04 19:21:01 2 20.12 0.00 1.72 1.14 0.08 76.94 19:21:01 3 18.07 0.00 1.54 2.89 0.07 77.43 Average: all 23.82 0.00 1.86 2.39 0.07 71.86 Average: 0 27.13 0.00 1.87 1.07 0.05 69.88 Average: 1 11.08 0.00 1.47 4.79 0.08 82.58 Average: 2 35.65 0.00 2.60 2.05 0.08 59.62 Average: 3 21.37 0.00 1.47 1.66 0.06 75.44