---> uname -a: Linux prd-ubuntu2004-memcached-4c-4g-356 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 8.7G 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/vda15 105M 6.1M 99M 6% /boot/efi /dev/loop1 44M 44M 0 100% /snap/snapd/15177 /dev/loop0 68M 68M 0 100% /snap/lxd/22753 /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 671 12842 1 2495 15012 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:5d:0c:ef brd ff:ff:ff:ff:ff:ff inet 10.30.107.68/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86250sec preferred_lft 86250sec inet6 fe80::f816:3eff:fe5d:cef/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-356) 03/07/26 _x86_64_ (4 CPU) 19:17:48 LINUX RESTART (4 CPU) 19:18:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 19:19:02 372.77 31.33 341.44 0.00 1645.19 16023.06 0.00 19:20:01 173.02 20.86 152.16 0.00 1344.31 27309.69 0.00 Average: 273.74 26.14 247.60 0.00 1496.02 21618.96 0.00 19:18:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:19:02 13490916 15231392 781308 4.77 77896 1841108 1580904 9.06 948576 1682240 264652 19:20:01 13156564 15374080 621320 3.79 127896 2217980 1206224 6.92 907540 1991952 122008 Average: 13323740 15302736 701314 4.28 102896 2029544 1393564 7.99 928058 1837096 193330 19:18:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 19:19:02 lo 1.53 1.53 0.18 0.18 0.00 0.00 0.00 0.00 19:19:02 ens3 556.32 370.17 2579.83 91.30 0.00 0.00 0.00 0.00 19:20:01 lo 1.29 1.29 0.14 0.14 0.00 0.00 0.00 0.00 19:20:01 ens3 220.25 179.46 1547.24 45.64 0.00 0.00 0.00 0.00 Average: lo 1.41 1.41 0.16 0.16 0.00 0.00 0.00 0.00 Average: ens3 389.70 275.62 2067.87 68.66 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-356) 03/07/26 _x86_64_ (4 CPU) 19:17:48 LINUX RESTART (4 CPU) 19:18:01 CPU %user %nice %system %iowait %steal %idle 19:19:02 all 25.73 0.00 2.16 2.54 0.07 69.49 19:19:02 0 35.36 0.00 2.92 5.59 0.07 56.05 19:19:02 1 17.35 0.00 1.17 1.87 0.07 79.55 19:19:02 2 26.42 0.00 2.65 2.11 0.08 68.74 19:19:02 3 23.80 0.00 1.91 0.60 0.07 73.62 19:20:01 all 24.09 0.00 2.31 1.28 0.07 72.26 19:20:01 0 16.31 0.00 2.51 2.98 0.07 78.12 19:20:01 1 30.49 0.00 2.79 1.26 0.07 65.39 19:20:01 2 37.13 0.00 2.60 0.63 0.07 59.57 19:20:01 3 12.40 0.00 1.33 0.24 0.07 85.97 Average: all 24.92 0.00 2.23 1.92 0.07 70.86 Average: 0 25.91 0.00 2.72 4.30 0.07 67.00 Average: 1 23.86 0.00 1.97 1.57 0.07 72.54 Average: 2 31.74 0.00 2.62 1.38 0.08 64.19 Average: 3 18.15 0.00 1.62 0.42 0.07 79.74