---> uname -a: Linux prd-ubuntu2004-memcached-4c-4g-17619 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/loop1 44M 44M 0 100% /snap/snapd/15177 /dev/loop2 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 645 12946 1 2416 15035 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:99:dd:79 brd ff:ff:ff:ff:ff:ff inet 10.30.106.97/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86223sec preferred_lft 86223sec inet6 fe80::f816:3eff:fe99:dd79/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-17619) 03/23/24 _x86_64_ (4 CPU) 19:19:51 LINUX RESTART (4 CPU) 19:20:02 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 19:21:02 118.98 51.56 67.42 0.00 4687.90 14061.00 0.00 19:22:01 149.91 19.40 130.51 0.00 511.63 15157.74 0.00 Average: 134.47 35.45 99.02 0.00 2596.06 14610.34 0.00 19:20:02 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:21:02 13875192 15472388 545224 3.33 68140 1720248 1183200 6.78 716136 1547604 144272 19:22:01 12846720 14978788 1012428 6.18 122408 2147420 1800340 10.32 1301760 1908764 284188 Average: 13360956 15225588 778826 4.75 95274 1933834 1491770 8.55 1008948 1728184 214230 19:20:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 19:21:02 lo 2.17 2.17 0.23 0.23 0.00 0.00 0.00 0.00 19:21:02 ens3 376.31 245.88 1526.14 60.36 0.00 0.00 0.00 0.00 19:22:01 lo 1.15 1.15 0.11 0.11 0.00 0.00 0.00 0.00 19:22:01 ens3 189.30 144.39 1664.29 34.02 0.00 0.00 0.00 0.00 Average: lo 1.66 1.66 0.17 0.17 0.00 0.00 0.00 0.00 Average: ens3 282.64 195.04 1595.34 47.17 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-17619) 03/23/24 _x86_64_ (4 CPU) 19:19:51 LINUX RESTART (4 CPU) 19:20:02 CPU %user %nice %system %iowait %steal %idle 19:21:02 all 22.47 0.00 2.36 3.50 0.06 71.62 19:21:02 0 21.30 0.00 2.65 2.78 0.07 73.20 19:21:02 1 7.77 0.00 2.02 6.60 0.07 83.53 19:21:02 2 16.85 0.00 1.79 2.26 0.03 79.06 19:21:02 3 43.91 0.00 2.97 2.34 0.07 50.70 19:22:01 all 26.53 0.00 2.12 3.02 0.08 68.25 19:22:01 0 15.90 0.00 1.15 1.14 0.07 81.75 19:22:01 1 19.75 0.00 2.12 4.61 0.07 73.46 19:22:01 2 39.89 0.00 2.52 4.79 0.08 52.70 19:22:01 3 30.59 0.00 2.68 1.54 0.08 65.11 Average: all 24.50 0.00 2.24 3.26 0.07 69.93 Average: 0 18.60 0.00 1.90 1.96 0.07 77.48 Average: 1 13.77 0.00 2.07 5.60 0.07 78.49 Average: 2 28.40 0.00 2.16 3.53 0.06 65.86 Average: 3 37.24 0.00 2.82 1.94 0.08 57.91