---> uname -a: Linux prd-ubuntu2004-memcached-4c-4g-14742 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/vda15 105M 6.1M 99M 6% /boot/efi /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 tmpfs 1.6G 0 1.6G 0% /run/user/1001 ---> free -m: total used free shared buff/cache available Mem: 16009 625 12741 1 2642 15058 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:52:96:14 brd ff:ff:ff:ff:ff:ff inet 10.30.107.9/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86252sec preferred_lft 86252sec inet6 fe80::f816:3eff:fe52:9614/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-14742) 08/01/26 _x86_64_ (4 CPU) 19:17:54 LINUX RESTART (4 CPU) 19:18:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 19:19:01 340.51 39.54 300.97 0.00 3595.80 30204.43 0.00 19:20:01 165.84 28.36 137.48 0.00 1585.34 23535.16 0.00 Average: 253.17 33.95 219.22 0.00 2590.57 26869.80 0.00 19:18:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:19:01 13643072 15420324 590284 3.60 77900 1877304 1169784 6.71 757052 1718252 296028 19:20:01 13011044 15388216 606888 3.70 128028 2367088 1190796 6.83 899192 2133452 209968 Average: 13327058 15404270 598586 3.65 102964 2122196 1180290 6.77 828122 1925852 252998 19:18:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 19:19:01 ens3 364.87 246.53 2017.80 76.11 0.00 0.00 0.00 0.00 19:19:01 lo 1.27 1.27 0.15 0.15 0.00 0.00 0.00 0.00 19:20:01 ens3 235.09 182.14 2613.92 37.40 0.00 0.00 0.00 0.00 19:20:01 lo 1.13 1.13 0.12 0.12 0.00 0.00 0.00 0.00 Average: ens3 299.98 214.33 2315.86 56.76 0.00 0.00 0.00 0.00 Average: lo 1.20 1.20 0.14 0.14 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-14742) 08/01/26 _x86_64_ (4 CPU) 19:17:54 LINUX RESTART (4 CPU) 19:18:01 CPU %user %nice %system %iowait %steal %idle 19:19:01 all 22.72 0.00 2.19 2.79 0.06 72.23 19:19:01 0 21.19 0.00 1.87 3.67 0.05 73.22 19:19:01 1 21.19 0.00 2.37 3.37 0.05 73.02 19:19:01 2 29.38 0.00 2.44 1.20 0.07 66.90 19:19:01 3 19.11 0.00 2.08 2.92 0.08 75.81 19:20:01 all 27.89 0.00 2.42 1.53 0.07 68.10 19:20:01 0 34.95 0.00 2.37 0.42 0.07 62.19 19:20:01 1 36.59 0.00 3.01 1.20 0.08 59.11 19:20:01 2 18.58 0.00 2.04 1.64 0.07 77.68 19:20:01 3 21.43 0.00 2.26 2.84 0.07 73.41 Average: all 25.30 0.00 2.31 2.16 0.07 70.16 Average: 0 28.07 0.00 2.12 2.05 0.06 67.71 Average: 1 28.89 0.00 2.69 2.29 0.07 66.07 Average: 2 23.98 0.00 2.24 1.42 0.07 72.29 Average: 3 20.27 0.00 2.17 2.88 0.08 74.60