---> uname -a: Linux prd-ubuntu2004-memcached-4c-4g-9032 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/loop1 62M 62M 0 100% /snap/core20/1405 /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 626 12733 1 2649 15048 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:f6:3b:27 brd ff:ff:ff:ff:ff:ff inet 10.30.107.196/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86239sec preferred_lft 86239sec inet6 fe80::f816:3eff:fef6:3b27/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-9032) 07/11/26 _x86_64_ (4 CPU) 19:17:55 LINUX RESTART (4 CPU) 19:18:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 19:19:02 353.11 39.73 313.38 0.00 3596.47 33334.18 0.00 19:20:01 180.88 28.44 152.45 0.00 1544.82 23601.85 0.00 Average: 267.72 34.13 233.59 0.00 2579.26 28508.90 0.00 19:18:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:19:02 13786252 15437152 571236 3.48 74216 1771248 1166344 6.69 729136 1615748 192744 19:20:01 13046868 15401568 583868 3.56 128700 2355520 1230496 7.05 878456 2120532 214984 Average: 13416560 15419360 577552 3.52 101458 2063384 1198420 6.87 803796 1868140 203864 19:18:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 19:19:02 lo 1.93 1.93 0.22 0.22 0.00 0.00 0.00 0.00 19:19:02 ens3 524.13 305.35 2028.21 80.60 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 281.66 200.93 2738.77 49.01 0.00 0.00 0.00 0.00 Average: lo 1.61 1.61 0.18 0.18 0.00 0.00 0.00 0.00 Average: ens3 403.92 253.58 2380.51 64.94 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-9032) 07/11/26 _x86_64_ (4 CPU) 19:17:55 LINUX RESTART (4 CPU) 19:18:01 CPU %user %nice %system %iowait %steal %idle 19:19:02 all 22.25 0.00 2.29 2.73 0.06 72.66 19:19:02 0 35.83 0.00 3.39 1.68 0.07 59.03 19:19:02 1 12.79 0.00 2.19 7.36 0.07 77.60 19:19:02 2 11.65 0.00 1.71 1.02 0.07 85.55 19:19:02 3 28.68 0.00 1.87 0.87 0.05 68.52 19:20:01 all 26.77 0.00 2.49 1.46 0.07 69.21 19:20:01 0 39.52 0.00 2.93 1.09 0.07 56.39 19:20:01 1 20.66 0.00 1.85 0.87 0.08 76.54 19:20:01 2 13.34 0.00 1.71 2.00 0.07 82.88 19:20:01 3 33.46 0.00 3.48 1.88 0.07 61.11 Average: all 24.49 0.00 2.39 2.10 0.07 70.95 Average: 0 37.66 0.00 3.16 1.39 0.07 57.72 Average: 1 16.69 0.00 2.02 4.14 0.08 77.07 Average: 2 12.49 0.00 1.71 1.51 0.07 84.23 Average: 3 31.05 0.00 2.67 1.37 0.06 64.85