---> uname -a: Linux prd-ubuntu2004-memcached-4c-4g-3714 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 8.7G 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/loop1 44M 44M 0 100% /snap/snapd/15177 /dev/loop2 62M 62M 0 100% /snap/core20/1405 /dev/loop0 68M 68M 0 100% /snap/lxd/22753 /dev/vda15 105M 6.1M 99M 6% /boot/efi tmpfs 1.6G 0 1.6G 0% /run/user/1001 ---> free -m: total used free shared buff/cache available Mem: 16009 613 12892 1 2503 15068 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:c4:17:18 brd ff:ff:ff:ff:ff:ff inet 10.30.106.109/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86211sec preferred_lft 86211sec inet6 fe80::f816:3eff:fec4:1718/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-3714) 12/09/23 _x86_64_ (4 CPU) 19:19:43 LINUX RESTART (4 CPU) 19:20:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 19:21:02 90.37 27.18 63.19 0.00 1971.27 7355.17 0.00 19:22:01 132.67 19.47 113.20 0.00 513.54 16216.25 0.00 Average: 111.34 23.36 87.99 0.00 1248.53 11748.49 0.00 19:20:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:21:02 13845048 15492176 522160 3.19 71764 1763788 1149956 6.59 697288 1590628 178908 19:22:01 12726564 14927940 1062664 6.48 122884 2213240 1744140 10.00 1356944 1970636 273364 Average: 13285806 15210058 792412 4.83 97324 1988514 1447048 8.30 1027116 1780632 226136 19:20:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 19:21:02 ens3 295.03 183.15 1421.35 47.38 0.00 0.00 0.00 0.00 19:21:02 lo 1.53 1.53 0.16 0.16 0.00 0.00 0.00 0.00 19:22:01 ens3 161.21 145.53 1741.38 43.86 0.00 0.00 0.00 0.00 19:22:01 lo 0.95 0.95 0.09 0.09 0.00 0.00 0.00 0.00 Average: ens3 228.68 164.50 1580.02 45.64 0.00 0.00 0.00 0.00 Average: lo 1.24 1.24 0.13 0.13 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-3714) 12/09/23 _x86_64_ (4 CPU) 19:19:43 LINUX RESTART (4 CPU) 19:20:01 CPU %user %nice %system %iowait %steal %idle 19:21:02 all 22.06 0.00 1.83 2.96 0.07 73.08 19:21:02 0 18.66 0.00 1.85 1.02 0.08 78.39 19:21:02 1 15.69 0.00 1.40 1.19 0.07 81.65 19:21:02 2 32.09 0.00 2.17 8.43 0.05 57.26 19:21:02 3 21.81 0.00 1.91 1.20 0.08 75.00 19:22:01 all 26.61 0.00 2.17 3.42 0.08 67.71 19:22:01 0 16.74 0.00 1.44 2.52 0.07 79.23 19:22:01 1 28.06 0.00 2.48 4.01 0.08 65.37 19:22:01 2 29.52 0.00 2.57 2.21 0.09 65.62 19:22:01 3 32.16 0.00 2.21 4.95 0.09 60.59 Average: all 24.31 0.00 2.00 3.19 0.08 70.42 Average: 0 17.71 0.00 1.65 1.76 0.08 78.81 Average: 1 21.83 0.00 1.94 2.59 0.08 73.58 Average: 2 30.81 0.00 2.37 5.35 0.07 61.40 Average: 3 26.94 0.00 2.06 3.06 0.08 67.86