---> uname -a: Linux prd-ubuntu2004-memcached-4c-4g-5216 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 8.8G 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/loop1 68M 68M 0 100% /snap/lxd/22753 /dev/loop0 62M 62M 0 100% /snap/core20/1405 /dev/loop2 44M 44M 0 100% /snap/snapd/15177 /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 667 12696 1 2645 15009 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:04:0c:11 brd ff:ff:ff:ff:ff:ff inet 10.30.106.115/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86213sec preferred_lft 86213sec inet6 fe80::f816:3eff:fe04:c11/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-5216) 07/04/26 _x86_64_ (4 CPU) 19:18:35 LINUX RESTART (4 CPU) 19:19:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 19:20:01 84.95 5.73 79.22 0.00 266.76 8004.95 0.00 19:21:01 161.04 23.01 138.03 0.00 1297.65 22913.25 0.00 Average: 123.00 14.37 108.62 0.00 782.20 15459.10 0.00 19:19:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:20:01 13624980 15459180 542456 3.31 78808 1939168 1139304 6.53 713040 1779052 365948 19:21:01 13007444 15359412 628016 3.83 128736 2351204 1224360 7.02 920240 2117480 207240 Average: 13316212 15409296 585236 3.57 103772 2145186 1181832 6.78 816640 1948266 286594 19:19:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 19:20:01 lo 1.53 1.53 0.18 0.18 0.00 0.00 0.00 0.00 19:20:01 ens3 140.33 95.07 1852.86 14.64 0.00 0.00 0.00 0.00 19:21:01 lo 1.00 1.00 0.10 0.10 0.00 0.00 0.00 0.00 19:21:01 ens3 182.32 158.26 2097.02 30.41 0.00 0.00 0.00 0.00 Average: lo 1.27 1.27 0.14 0.14 0.00 0.00 0.00 0.00 Average: ens3 161.32 126.66 1974.94 22.53 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-5216) 07/04/26 _x86_64_ (4 CPU) 19:18:35 LINUX RESTART (4 CPU) 19:19:01 CPU %user %nice %system %iowait %steal %idle 19:20:01 all 18.32 0.00 1.51 1.84 0.06 78.27 19:20:01 0 14.79 0.00 1.44 0.27 0.05 83.45 19:20:01 1 17.23 0.00 1.62 0.23 0.07 80.85 19:20:01 2 19.88 0.00 1.28 1.62 0.05 77.17 19:20:01 3 21.39 0.00 1.69 5.25 0.08 71.60 19:21:01 all 22.31 0.00 1.94 5.78 0.08 69.90 19:21:01 0 17.17 0.00 1.35 1.47 0.08 79.92 19:21:01 1 21.61 0.00 1.09 0.65 0.08 76.57 19:21:01 2 13.25 0.00 2.01 8.16 0.07 76.51 19:21:01 3 37.21 0.00 3.31 12.84 0.08 46.55 Average: all 20.31 0.00 1.72 3.81 0.07 74.09 Average: 0 15.98 0.00 1.40 0.87 0.07 81.69 Average: 1 19.42 0.00 1.35 0.44 0.08 78.71 Average: 2 16.57 0.00 1.64 4.88 0.06 76.84 Average: 3 29.29 0.00 2.50 9.04 0.08 59.09