---> uname -a: Linux prd-ubuntu2004-memcached-4c-4g-10147 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/loop1 68M 68M 0 100% /snap/lxd/22753 /dev/vda15 105M 6.1M 99M 6% /boot/efi /dev/loop0 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 605 12927 1 2476 15076 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:58:60:55 brd ff:ff:ff:ff:ff:ff inet 10.30.107.230/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86223sec preferred_lft 86223sec inet6 fe80::f816:3eff:fe58:6055/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-10147) 01/06/24 _x86_64_ (4 CPU) 19:18:53 LINUX RESTART (4 CPU) 19:19:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 19:20:02 128.24 50.71 77.53 0.00 4613.03 17479.66 0.00 19:21:01 139.98 19.49 120.49 0.00 513.40 16684.38 0.00 Average: 134.06 35.23 98.82 0.00 2580.78 17085.43 0.00 19:19:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:20:02 13855708 15489336 527180 3.22 70424 1751096 1136160 6.51 697508 1581152 162376 19:21:01 12821368 15003500 988516 6.03 121980 2194332 1720356 9.86 1275592 1956388 236236 Average: 13338538 15246418 757848 4.62 96202 1972714 1428258 8.19 986550 1768770 199306 19:19:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 19:20:02 ens3 390.24 252.86 1671.11 61.98 0.00 0.00 0.00 0.00 19:20:02 lo 2.07 2.07 0.22 0.22 0.00 0.00 0.00 0.00 19:21:01 ens3 205.98 174.58 1722.00 51.95 0.00 0.00 0.00 0.00 19:21:01 lo 1.02 1.02 0.10 0.10 0.00 0.00 0.00 0.00 Average: ens3 298.90 214.05 1696.33 57.01 0.00 0.00 0.00 0.00 Average: lo 1.55 1.55 0.16 0.16 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-10147) 01/06/24 _x86_64_ (4 CPU) 19:18:53 LINUX RESTART (4 CPU) 19:19:01 CPU %user %nice %system %iowait %steal %idle 19:20:02 all 23.41 0.00 2.22 2.79 0.06 71.51 19:20:02 0 23.56 0.00 2.44 0.97 0.05 72.98 19:20:02 1 21.93 0.00 2.20 0.82 0.05 75.00 19:20:02 2 33.28 0.00 2.73 7.76 0.07 56.17 19:20:02 3 14.88 0.00 1.53 1.61 0.07 81.92 19:21:01 all 27.50 0.00 2.20 2.93 0.07 67.30 19:21:01 0 54.06 0.00 4.02 3.33 0.10 38.49 19:21:01 1 18.89 0.00 1.48 0.82 0.05 78.77 19:21:01 2 16.67 0.00 1.23 3.93 0.07 78.10 19:21:01 3 20.26 0.00 2.04 3.66 0.07 73.96 Average: all 25.44 0.00 2.21 2.86 0.07 69.43 Average: 0 38.70 0.00 3.23 2.14 0.08 55.86 Average: 1 20.42 0.00 1.84 0.82 0.05 76.87 Average: 2 25.07 0.00 1.99 5.87 0.07 67.01 Average: 3 17.55 0.00 1.78 2.63 0.07 77.97