---> uname -a: Linux prd-ubuntu2004-memcached-4c-4g-2051 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/loop1 44M 44M 0 100% /snap/snapd/15177 /dev/loop2 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 636 12882 1 2490 15039 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:b6:cc:43 brd ff:ff:ff:ff:ff:ff inet 10.30.107.245/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86240sec preferred_lft 86240sec inet6 fe80::f816:3eff:feb6:cc43/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-2051) 03/14/26 _x86_64_ (4 CPU) 19:18:46 LINUX RESTART (4 CPU) 19:19:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 19:20:00 321.45 33.36 288.09 0.00 3361.71 11301.32 0.00 19:21:01 174.63 27.63 146.99 0.00 1526.83 20251.78 0.00 Average: 247.43 30.47 216.96 0.00 2436.69 15813.53 0.00 19:19:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:20:00 13811164 15487696 521840 3.18 76844 1788072 1151880 6.60 681692 1635904 225952 19:21:01 13129116 15340432 650180 3.97 127536 2220172 1280208 7.34 945152 1984416 179208 Average: 13470140 15414064 586010 3.57 102190 2004122 1216044 6.97 813422 1810160 202580 19:19:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 19:20:00 ens3 388.05 231.74 1844.34 74.11 0.00 0.00 0.00 0.00 19:20:00 lo 1.40 1.40 0.17 0.17 0.00 0.00 0.00 0.00 19:21:01 ens3 203.03 167.79 2184.61 34.51 0.00 0.00 0.00 0.00 19:21:01 lo 1.18 1.18 0.13 0.13 0.00 0.00 0.00 0.00 Average: ens3 294.78 199.50 2015.88 54.15 0.00 0.00 0.00 0.00 Average: lo 1.29 1.29 0.15 0.15 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-2051) 03/14/26 _x86_64_ (4 CPU) 19:18:46 LINUX RESTART (4 CPU) 19:19:01 CPU %user %nice %system %iowait %steal %idle 19:20:00 all 23.25 0.00 2.30 3.19 0.06 71.19 19:20:00 0 19.37 0.00 3.34 3.35 0.07 73.88 19:20:00 1 8.34 0.00 1.57 5.75 0.05 84.29 19:20:00 2 41.58 0.00 2.69 2.34 0.08 53.31 19:20:00 3 23.72 0.00 1.60 1.34 0.05 73.29 19:21:01 all 26.50 0.00 2.35 2.20 0.08 68.87 19:21:01 0 26.49 0.00 1.79 0.82 0.08 70.82 19:21:01 1 36.94 0.00 3.89 4.37 0.08 54.71 19:21:01 2 26.84 0.00 2.07 1.32 0.08 69.69 19:21:01 3 15.73 0.00 1.65 2.29 0.07 80.28 Average: all 24.89 0.00 2.33 2.69 0.07 70.02 Average: 0 22.96 0.00 2.56 2.08 0.07 72.34 Average: 1 22.76 0.00 2.74 5.05 0.07 69.37 Average: 2 34.17 0.00 2.38 1.83 0.08 61.54 Average: 3 19.69 0.00 1.63 1.82 0.06 76.81