---> uname -a: Linux prd-ubuntu2004-memcached-4c-4g-40373 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/loop0 62M 62M 0 100% /snap/core20/1405 /dev/vda15 105M 6.1M 99M 6% /boot/efi /dev/loop2 44M 44M 0 100% /snap/snapd/15177 /dev/loop1 68M 68M 0 100% /snap/lxd/22753 tmpfs 1.6G 0 1.6G 0% /run/user/1001 ---> free -m: total used free shared buff/cache available Mem: 16009 649 12886 1 2473 15030 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:f4:d7:b1 brd ff:ff:ff:ff:ff:ff inet 10.30.106.182/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86240sec preferred_lft 86240sec inet6 fe80::f816:3eff:fef4:d7b1/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-40373) 08/23/25 _x86_64_ (4 CPU) 19:18:59 LINUX RESTART (4 CPU) 19:19:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 19:20:03 365.08 50.65 314.43 0.00 4269.51 88817.99 0.00 19:21:01 169.18 28.13 141.05 0.00 1498.52 17102.26 0.00 Average: 268.79 39.58 229.21 0.00 2907.49 53567.68 0.00 19:19:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:20:03 13832872 15437632 577248 3.52 71348 1722664 1190184 6.82 725312 1575472 160356 19:21:01 13188652 15370056 619920 3.78 127300 2185800 1232036 7.06 900736 1963040 276240 Average: 13510762 15403844 598584 3.65 99324 1954232 1211110 6.94 813024 1769256 218298 19:19:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 19:20:03 lo 2.67 2.67 0.28 0.28 0.00 0.00 0.00 0.00 19:20:03 ens3 367.03 230.01 1772.97 73.83 0.00 0.00 0.00 0.00 19:21:01 lo 1.03 1.03 0.12 0.12 0.00 0.00 0.00 0.00 19:21:01 ens3 259.93 200.50 2057.29 47.36 0.00 0.00 0.00 0.00 Average: lo 1.86 1.86 0.20 0.20 0.00 0.00 0.00 0.00 Average: ens3 314.38 215.50 1912.72 60.82 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-40373) 08/23/25 _x86_64_ (4 CPU) 19:18:59 LINUX RESTART (4 CPU) 19:19:01 CPU %user %nice %system %iowait %steal %idle 19:20:03 all 20.50 0.00 2.59 5.27 0.07 71.57 19:20:03 0 13.47 0.00 3.78 9.50 0.05 73.20 19:20:03 1 33.56 0.00 3.02 6.72 0.08 56.62 19:20:03 2 13.71 0.00 1.51 2.56 0.07 82.15 19:20:03 3 21.26 0.00 2.07 2.33 0.07 74.27 19:21:01 all 26.15 0.00 2.31 2.86 0.08 68.60 19:21:01 0 28.01 0.00 2.38 1.10 0.09 68.42 19:21:01 1 22.53 0.00 2.26 5.77 0.07 69.37 19:21:01 2 20.44 0.00 1.61 2.78 0.09 75.08 19:21:01 3 33.59 0.00 2.99 1.78 0.09 61.55 Average: all 23.27 0.00 2.46 4.09 0.07 70.11 Average: 0 20.62 0.00 3.09 5.37 0.07 70.85 Average: 1 28.14 0.00 2.65 6.26 0.08 62.88 Average: 2 17.00 0.00 1.56 2.67 0.08 78.69 Average: 3 27.33 0.00 2.53 2.06 0.08 68.02