---> uname -a: Linux prd-ubuntu2004-memcached-4c-4g-18544 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/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 659 12704 1 2645 15024 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:c6:6d:d4 brd ff:ff:ff:ff:ff:ff inet 10.30.106.34/23 brd 10.30.107.255 scope global dynamic ens3 valid_lft 86233sec preferred_lft 86233sec inet6 fe80::f816:3eff:fec6:6dd4/64 scope link valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-18544) 06/20/26 _x86_64_ (4 CPU) 19:18:44 LINUX RESTART (4 CPU) 19:19:01 tps rtps wtps dtps bread/s bwrtn/s bdscd/s 19:20:02 312.51 9.50 303.02 0.00 728.28 9649.86 0.00 19:21:01 186.65 28.84 157.80 0.00 1614.91 24266.82 0.00 Average: 250.11 19.09 231.02 0.00 1167.87 16896.93 0.00 19:19:01 kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 19:20:02 13602532 15374228 636864 3.88 78184 1872080 1238732 7.10 804052 1713352 296872 19:21:01 13056704 15425880 569632 3.47 128756 2361396 1169888 6.71 858552 2132656 205596 Average: 13329618 15400054 603248 3.68 103470 2116738 1204310 6.90 831302 1923004 251234 19:19:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 19:20:02 lo 1.27 1.27 0.15 0.15 0.00 0.00 0.00 0.00 19:20:02 ens3 129.56 87.69 1333.95 29.37 0.00 0.00 0.00 0.00 19:21:01 lo 1.36 1.36 0.14 0.14 0.00 0.00 0.00 0.00 19:21:01 ens3 232.03 188.05 2703.36 34.95 0.00 0.00 0.00 0.00 Average: lo 1.31 1.31 0.15 0.15 0.00 0.00 0.00 0.00 Average: ens3 180.36 137.45 2012.91 32.14 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 5.4.0-148-generic (prd-ubuntu2004-memcached-4c-4g-18544) 06/20/26 _x86_64_ (4 CPU) 19:18:44 LINUX RESTART (4 CPU) 19:19:01 CPU %user %nice %system %iowait %steal %idle 19:20:02 all 18.92 0.00 1.81 3.64 0.07 75.56 19:20:02 0 31.54 0.00 1.94 0.68 0.07 65.78 19:20:02 1 4.94 0.00 2.03 8.97 0.07 83.99 19:20:02 2 12.42 0.00 0.87 1.88 0.07 84.76 19:20:02 3 26.84 0.00 2.39 3.02 0.07 67.68 19:21:01 all 26.03 0.00 2.54 2.34 0.07 69.03 19:21:01 0 25.25 0.00 2.74 0.83 0.07 71.10 19:21:01 1 15.53 0.00 2.07 3.16 0.07 79.17 19:21:01 2 17.82 0.00 2.32 3.22 0.05 76.59 19:21:01 3 45.43 0.00 3.01 2.14 0.08 49.34 Average: all 22.44 0.00 2.17 3.00 0.07 72.33 Average: 0 28.42 0.00 2.34 0.76 0.07 68.42 Average: 1 10.17 0.00 2.05 6.11 0.07 81.61 Average: 2 15.09 0.00 1.58 2.54 0.06 80.72 Average: 3 36.06 0.00 2.70 2.59 0.08 58.59