---> uname -a: Linux prd-ubuntu2004-memcached-4c-4g-24485 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: 2799.998 BogoMIPS: 5599.99 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 8.6G 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/vda15 105M 6.1M 99M 6% /boot/efi /dev/loop1 62M 62M 0 100% /snap/core20/1405 /dev/loop0 68M 68M 0 100% /snap/lxd/22753 /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 659 12893 1 2456 15023 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:7e:a6:e4 brd ff:ff:ff:ff:ff:ff inet 10.30.106.162/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86240sec preferred_lft 86240sec inet6 fe80::f816:3eff:fe7e:a6e4/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-24485) 06/28/25 _x86_64_ (4 CPU) 19:18:48 LINUX RESTART (4 CPU) 19:19:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 19:20:01 344.03 33.93 310.10 0.00 3401.97 11480.75 0.00 19:21:01 169.81 27.89 141.92 0.00 1546.68 18580.62 0.00 Average: 256.91 30.91 226.00 0.00 2474.25 15030.98 0.00 19:19:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:20:01 13700848 15384808 625116 3.81 76396 1789920 1215988 6.97 787172 1633992 225204 19:21:01 13173084 15348552 642832 3.92 126568 2181136 1233796 7.07 927828 1954008 196520 Average: 13436966 15366680 633974 3.87 101482 1985528 1224892 7.02 857500 1794000 210862 19:19:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 19:20:01 ens3 506.17 355.56 1832.35 83.47 0.00 0.00 0.00 0.00 19:20:01 lo 1.47 1.47 0.17 0.17 0.00 0.00 0.00 0.00 19:21:01 ens3 260.30 206.65 1860.73 38.34 0.00 0.00 0.00 0.00 19:21:01 lo 1.20 1.20 0.13 0.13 0.00 0.00 0.00 0.00 Average: ens3 383.22 281.10 1846.55 60.91 0.00 0.00 0.00 0.00 Average: lo 1.33 1.33 0.15 0.15 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-24485) 06/28/25 _x86_64_ (4 CPU) 19:18:48 LINUX RESTART (4 CPU) 19:19:01 CPU %user %nice %system %iowait %steal %idle 19:20:01 all 22.76 0.00 2.11 3.44 0.07 71.62 19:20:01 0 51.13 0.00 4.05 2.40 0.08 42.33 19:20:01 1 21.59 0.00 2.04 3.85 0.05 72.47 19:20:01 2 7.81 0.00 1.09 0.77 0.05 90.28 19:20:01 3 10.35 0.00 1.26 6.72 0.08 81.59 19:21:01 all 26.44 0.00 2.56 2.88 0.08 68.04 19:21:01 0 11.40 0.00 1.96 2.08 0.07 84.48 19:21:01 1 46.55 0.00 3.86 2.89 0.10 46.60 19:21:01 2 24.85 0.00 2.38 2.82 0.07 69.88 19:21:01 3 23.05 0.00 2.04 3.71 0.07 71.13 Average: all 24.60 0.00 2.34 3.16 0.07 69.83 Average: 0 31.25 0.00 3.01 2.24 0.07 63.43 Average: 1 34.07 0.00 2.95 3.37 0.08 59.53 Average: 2 16.33 0.00 1.74 1.80 0.06 80.08 Average: 3 16.71 0.00 1.65 5.21 0.08 76.35