---> uname -a: Linux prd-ubuntu2004-memcached-4c-4g-2422 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: 2800.000 BogoMIPS: 5600.00 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/loop1 68M 68M 0 100% /snap/lxd/22753 /dev/vda15 105M 6.1M 99M 6% /boot/efi /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 598 12983 1 2427 15082 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:b4:67:25 brd ff:ff:ff:ff:ff:ff inet 10.30.106.161/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86223sec preferred_lft 86223sec inet6 fe80::f816:3eff:feb4:6725/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-2422) 02/03/24 _x86_64_ (4 CPU) 19:18:54 LINUX RESTART (4 CPU) 19:19:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 19:20:02 118.78 50.56 68.22 0.00 4592.97 8301.28 0.00 19:21:01 140.82 19.54 121.28 0.00 516.25 16205.81 0.00 Average: 129.71 35.18 94.53 0.00 2571.74 12220.34 0.00 19:19:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:20:02 13947836 15568600 447064 2.73 69492 1740936 1117112 6.40 616136 1570608 157656 19:21:01 12906748 14973048 1017864 6.21 108656 2109504 1824008 10.46 1285344 1878572 197956 Average: 13427292 15270824 732464 4.47 89074 1925220 1470560 8.43 950740 1724590 177806 19:19:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 19:20:02 lo 2.27 2.27 0.24 0.24 0.00 0.00 0.00 0.00 19:20:02 ens3 424.63 280.29 1579.87 62.08 0.00 0.00 0.00 0.00 19:21:01 lo 1.15 1.15 0.11 0.11 0.00 0.00 0.00 0.00 19:21:01 ens3 181.31 147.72 1632.60 43.70 0.00 0.00 0.00 0.00 Average: lo 1.71 1.71 0.18 0.18 0.00 0.00 0.00 0.00 Average: ens3 303.99 214.56 1606.01 52.97 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-2422) 02/03/24 _x86_64_ (4 CPU) 19:18:54 LINUX RESTART (4 CPU) 19:19:01 CPU %user %nice %system %iowait %steal %idle 19:20:02 all 23.17 0.00 2.27 2.92 0.07 71.57 19:20:02 0 11.16 0.00 1.73 1.20 0.05 85.85 19:20:02 1 16.64 0.00 2.04 0.87 0.07 80.38 19:20:02 2 52.52 0.00 3.65 2.95 0.08 40.80 19:20:02 3 12.40 0.00 1.68 6.69 0.07 79.17 19:21:01 all 27.50 0.00 2.02 3.12 0.08 67.29 19:21:01 0 18.04 0.00 1.66 3.79 0.07 76.44 19:21:01 1 16.63 0.00 1.60 2.00 0.07 79.70 19:21:01 2 42.10 0.00 2.55 1.34 0.08 53.93 19:21:01 3 33.16 0.00 2.28 5.35 0.09 59.12 Average: all 25.31 0.00 2.15 3.02 0.07 69.45 Average: 0 14.57 0.00 1.70 2.48 0.06 81.19 Average: 1 16.64 0.00 1.82 1.43 0.07 80.04 Average: 2 47.34 0.00 3.10 2.15 0.08 47.32 Average: 3 22.70 0.00 1.98 6.02 0.08 69.23