---> uname -a: Linux prd-ubuntu2004-memcached-4c-4g-3129 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 8.8G 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 44M 44M 0 100% /snap/snapd/15177 /dev/loop2 62M 62M 0 100% /snap/core20/1405 tmpfs 1.6G 0 1.6G 0% /run/user/1001 ---> free -m: total used free shared buff/cache available Mem: 16009 659 12715 1 2634 15015 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:8c:a3:5a brd ff:ff:ff:ff:ff:ff inet 10.30.106.71/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86243sec preferred_lft 86243sec inet6 fe80::f816:3eff:fe8c:a35a/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-3129) 05/23/26 _x86_64_ (4 CPU) 19:17:56 LINUX RESTART (4 CPU) 19:18:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 19:19:01 386.54 40.09 346.45 0.00 3635.85 37267.44 0.00 19:20:02 184.19 27.83 156.36 0.00 1518.15 22828.48 0.00 Average: 285.37 33.96 251.41 0.00 2577.09 30048.56 0.00 19:18:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:19:01 13777144 15386064 624472 3.81 72420 1731256 1240148 7.11 779276 1578472 163348 19:20:02 12993712 15346700 639216 3.90 128556 2353036 1274940 7.31 931944 2117988 239448 Average: 13385428 15366382 631844 3.85 100488 2042146 1257544 7.21 855610 1848230 201398 19:18:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 19:19:01 lo 1.93 1.93 0.22 0.22 0.00 0.00 0.00 0.00 19:19:01 ens3 380.79 251.90 1806.79 75.61 0.00 0.00 0.00 0.00 19:20:02 lo 1.27 1.27 0.13 0.13 0.00 0.00 0.00 0.00 19:20:02 ens3 251.62 188.57 2873.28 45.57 0.00 0.00 0.00 0.00 Average: lo 1.60 1.60 0.18 0.18 0.00 0.00 0.00 0.00 Average: ens3 316.21 220.24 2339.99 60.59 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-3129) 05/23/26 _x86_64_ (4 CPU) 19:17:56 LINUX RESTART (4 CPU) 19:18:01 CPU %user %nice %system %iowait %steal %idle 19:19:01 all 21.78 0.00 2.20 2.88 0.07 73.07 19:19:01 0 19.09 0.00 1.79 2.29 0.08 76.75 19:19:01 1 13.49 0.00 1.48 0.83 0.03 84.17 19:19:01 2 41.98 0.00 2.88 1.89 0.10 53.15 19:19:01 3 11.96 0.00 2.66 6.60 0.07 78.72 19:20:02 all 27.62 0.00 2.47 1.48 0.09 68.34 19:20:02 0 28.58 0.00 1.75 0.43 0.10 69.14 19:20:02 1 19.65 0.00 1.99 1.26 0.07 77.04 19:20:02 2 49.68 0.00 4.10 1.74 0.10 44.37 19:20:02 3 12.60 0.00 2.04 2.48 0.08 82.80 Average: all 24.72 0.00 2.34 2.17 0.08 70.68 Average: 0 23.84 0.00 1.77 1.36 0.09 72.94 Average: 1 16.61 0.00 1.74 1.04 0.05 80.55 Average: 2 45.83 0.00 3.49 1.82 0.10 48.76 Average: 3 12.29 0.00 2.34 4.50 0.08 80.80