---> uname -a: Linux prd-ubuntu2004-memcached-4c-4g-19526 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/loop2 44M 44M 0 100% /snap/snapd/15177 /dev/loop1 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 602 13000 1 2406 15080 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:27:00:27 brd ff:ff:ff:ff:ff:ff inet 10.30.107.144/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86207sec preferred_lft 86207sec inet6 fe80::f816:3eff:fe27:27/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-19526) 03/30/24 _x86_64_ (4 CPU) 19:21:18 LINUX RESTART (4 CPU) 19:22:02 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 19:23:01 101.19 19.00 82.19 0.00 1270.37 11204.49 0.00 19:24:01 116.83 12.58 104.25 0.00 383.80 14118.05 0.00 Average: 109.07 15.76 93.31 0.00 823.33 12673.63 0.00 19:22:02 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:23:01 13513820 15250764 760524 4.64 78500 1839760 1526260 8.75 955428 1653280 107344 19:24:01 13272344 15400336 593784 3.62 124880 2137500 1195772 6.86 878996 1906860 131100 Average: 13393082 15325550 677154 4.13 101690 1988630 1361016 7.80 917212 1780070 119222 19:22:02 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 19:23:01 ens3 109.98 85.19 1491.43 16.14 0.00 0.00 0.00 0.00 19:23:01 lo 1.02 1.02 0.11 0.11 0.00 0.00 0.00 0.00 19:24:01 ens3 103.37 93.47 764.46 37.26 0.00 0.00 0.00 0.00 19:24:01 lo 1.00 1.00 0.10 0.10 0.00 0.00 0.00 0.00 Average: ens3 106.65 89.36 1124.86 26.79 0.00 0.00 0.00 0.00 Average: lo 1.01 1.01 0.10 0.10 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-19526) 03/30/24 _x86_64_ (4 CPU) 19:21:18 LINUX RESTART (4 CPU) 19:22:02 CPU %user %nice %system %iowait %steal %idle 19:23:01 all 23.07 0.00 1.56 4.93 0.08 70.35 19:23:01 0 19.66 0.00 1.10 0.27 0.05 78.91 19:23:01 1 30.25 0.00 2.52 11.48 0.09 55.67 19:23:01 2 15.28 0.00 1.21 5.30 0.12 78.10 19:23:01 3 27.10 0.00 1.43 2.69 0.07 68.72 19:24:01 all 23.06 0.00 1.92 4.20 0.08 70.75 19:24:01 0 31.88 0.00 2.78 3.51 0.08 61.74 19:24:01 1 33.06 0.00 2.16 6.97 0.08 57.73 19:24:01 2 17.43 0.00 1.50 3.61 0.07 77.39 19:24:01 3 9.85 0.00 1.22 2.71 0.07 86.15 Average: all 23.07 0.00 1.74 4.56 0.08 70.55 Average: 0 25.83 0.00 1.95 1.91 0.07 70.24 Average: 1 31.67 0.00 2.34 9.21 0.08 56.71 Average: 2 16.37 0.00 1.36 4.44 0.09 77.74 Average: 3 18.40 0.00 1.32 2.70 0.07 77.51