---> uname -a: Linux prd-centos8-builder-8c-8g-10786.novalocal 4.18.0-553.5.1.el8.x86_64 #1 SMP Tue May 21 05:46:01 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux ---> lscpu: Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 8 On-line CPU(s) list: 0-7 Thread(s) per core: 1 Core(s) per socket: 1 Socket(s): 8 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: 32K L1i cache: 32K L2 cache: 512K L3 cache: 16384K NUMA node0 CPU(s): 0-7 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: 8 ---> df -h: Filesystem Size Used Avail Use% Mounted on devtmpfs 16G 0 16G 0% /dev tmpfs 16G 0 16G 0% /dev/shm tmpfs 16G 17M 16G 1% /run tmpfs 16G 0 16G 0% /sys/fs/cgroup /dev/vda1 160G 11G 150G 7% / tmpfs 3.2G 0 3.2G 0% /run/user/1001 ---> free -m: total used free shared buff/cache available Mem: 31888 1114 27389 19 3384 30300 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: eth0: mtu 1458 qdisc mq state UP group default qlen 1000 link/ether fa:16:3e:9f:b9:f0 brd ff:ff:ff:ff:ff:ff altname enp0s3 altname ens3 inet 10.30.170.164/23 brd 10.30.171.255 scope global dynamic noprefixroute eth0 valid_lft 85464sec preferred_lft 85464sec inet6 fe80::f816:3eff:fe9f:b9f0/64 scope link valid_lft forever preferred_lft forever 3: docker0: mtu 1458 qdisc noqueue state DOWN group default link/ether 02:42:85:bc:60:b6 brd ff:ff:ff:ff:ff:ff inet 10.250.0.254/24 brd 10.250.0.255 scope global docker0 valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 4.18.0-553.5.1.el8.x86_64 (centos-stream-8-builder-5e6ee0fb-b6d9-4116-90d4-35c890e2b0f7.nov) 08/14/2024 _x86_64_ (8 CPU) 04:42:26 LINUX RESTART (8 CPU) 04:43:01 AM tps rtps wtps bread/s bwrtn/s 04:44:01 AM 297.78 14.10 283.69 2374.14 9724.99 04:45:01 AM 73.41 2.73 70.68 1682.11 8808.78 04:46:01 AM 7.10 0.05 7.05 1.07 145.95 04:47:01 AM 256.33 15.93 240.40 2379.74 2805.35 04:48:01 AM 125.76 4.50 121.26 528.62 8900.43 04:49:01 AM 77.99 0.00 77.99 0.00 7893.32 04:50:01 AM 25.12 0.05 25.07 82.63 2314.61 04:51:01 AM 58.61 0.00 58.61 0.00 2578.57 04:52:01 AM 70.93 0.00 70.93 0.00 5314.50 04:53:01 AM 27.01 0.00 27.01 0.00 2225.37 04:54:01 AM 15.68 0.03 15.64 0.53 1423.26 04:55:01 AM 20.33 0.00 20.33 0.00 1834.56 04:56:01 AM 35.90 0.00 35.90 0.00 3142.12 04:57:01 AM 12.98 0.00 12.98 0.00 1692.17 04:58:01 AM 23.26 0.32 22.94 49.05 954.17 Average: 75.21 2.51 72.70 473.19 3983.85 04:43:01 AM kbmemfree kbavail kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 04:44:01 AM 29349956 31188172 3303500 10.12 2688 2156956 1519872 4.51 257004 2597516 205884 04:45:01 AM 29310708 31226960 3342748 10.24 2688 2232772 1400880 4.16 256404 2616676 192 04:46:01 AM 29306808 31223808 3346648 10.25 2688 2233104 1400880 4.16 256420 2620492 8 04:47:01 AM 28028784 30232012 4624672 14.16 2688 2511264 2684756 7.97 303244 3824576 204192 04:48:01 AM 25873880 28360224 6779576 20.76 2688 2789400 4755624 14.11 475420 5783088 231336 04:49:01 AM 25761328 28240960 6892128 21.11 2688 2781540 4166084 12.36 522360 5845384 23044 04:50:01 AM 24969072 27520988 7684384 23.53 2688 2852476 4855764 14.41 539912 6611868 33824 04:51:01 AM 24879968 27481208 7773488 23.81 2688 2897456 4825456 14.32 555312 6673140 34496 04:52:01 AM 24569076 27416536 8084380 24.76 2688 3137164 4742688 14.07 600936 6911428 144084 04:53:01 AM 25068172 27851996 7585284 23.23 2688 3073044 4306220 12.78 596160 6417100 27896 04:54:01 AM 24978836 27791364 7674620 23.50 2688 3101184 4362080 12.94 600104 6500396 19560 04:55:01 AM 24936944 27828136 7716512 23.63 2688 3176132 4235716 12.57 615840 6513732 50860 04:56:01 AM 24319132 27290012 8334324 25.52 2688 3251612 4889784 14.51 635056 7094544 42232 04:57:01 AM 24286840 27259504 8366616 25.62 2688 3253088 4682060 13.89 635580 7123612 24 04:58:01 AM 28051220 31027460 4602236 14.09 2688 3255980 1485656 4.41 793832 3212916 4 Average: 26246048 28795956 6407408 19.62 2688 2846878 3620901 10.74 509572 5356431 67842 04:43:01 AM IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s %ifutil 04:44:01 AM lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:44:01 AM eth0 118.56 89.80 1018.62 14.74 0.00 0.00 0.00 0.00 04:44:01 AM docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:45:01 AM lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:45:01 AM eth0 72.08 60.46 418.16 21.39 0.00 0.00 0.00 0.00 04:45:01 AM docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:46:01 AM lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:46:01 AM eth0 57.13 47.43 284.27 10.45 0.00 0.00 0.00 0.00 04:46:01 AM docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:47:01 AM lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:47:01 AM eth0 298.60 287.32 3261.19 52.93 0.00 0.00 0.00 0.00 04:47:01 AM docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:48:01 AM lo 1935.19 1935.19 1847.37 1847.37 0.00 0.00 0.00 0.00 04:48:01 AM eth0 226.01 146.70 2543.47 18.51 0.00 0.00 0.00 0.00 04:48:01 AM docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:49:01 AM lo 2156.60 2156.60 2057.81 2057.81 0.00 0.00 0.00 0.00 04:49:01 AM eth0 70.46 60.46 1008.07 8.62 0.00 0.00 0.00 0.00 04:49:01 AM docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:50:01 AM lo 0.05 0.05 0.00 0.00 0.00 0.00 0.00 0.00 04:50:01 AM eth0 18.72 17.82 12.89 5.57 0.00 0.00 0.00 0.00 04:50:01 AM docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:51:01 AM lo 3546.20 3546.20 3385.59 3385.59 0.00 0.00 0.00 0.00 04:51:01 AM eth0 14.50 13.90 5.10 4.58 0.00 0.00 0.00 0.00 04:51:01 AM docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:52:01 AM lo 2168.31 2168.31 2069.15 2069.15 0.00 0.00 0.00 0.00 04:52:01 AM eth0 10.60 10.38 7.82 3.32 0.00 0.00 0.00 0.00 04:52:01 AM docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:53:01 AM lo 0.95 0.95 0.05 0.05 0.00 0.00 0.00 0.00 04:53:01 AM eth0 14.73 13.06 3.83 4.87 0.00 0.00 0.00 0.00 04:53:01 AM docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:54:01 AM lo 0.77 0.77 0.04 0.04 0.00 0.00 0.00 0.00 04:54:01 AM eth0 10.68 9.98 17.18 3.40 0.00 0.00 0.00 0.00 04:54:01 AM docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:55:01 AM lo 0.07 0.07 0.00 0.00 0.00 0.00 0.00 0.00 04:55:01 AM eth0 11.93 11.10 2.85 4.16 0.00 0.00 0.00 0.00 04:55:01 AM docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:56:01 AM lo 0.70 0.70 0.03 0.03 0.00 0.00 0.00 0.00 04:56:01 AM eth0 14.56 13.90 26.94 4.71 0.00 0.00 0.00 0.00 04:56:01 AM docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:57:01 AM lo 6.67 6.67 0.43 0.43 0.00 0.00 0.00 0.00 04:57:01 AM eth0 1.10 0.88 0.19 0.36 0.00 0.00 0.00 0.00 04:57:01 AM docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 04:58:01 AM lo 6.03 6.03 0.40 0.40 0.00 0.00 0.00 0.00 04:58:01 AM eth0 20.96 19.16 21.26 9.63 0.00 0.00 0.00 0.00 04:58:01 AM docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: lo 654.76 654.76 624.05 624.05 0.00 0.00 0.00 0.00 Average: eth0 64.04 53.49 575.45 11.15 0.00 0.00 0.00 0.00 Average: docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 ---> sar -P ALL: Linux 4.18.0-553.5.1.el8.x86_64 (centos-stream-8-builder-5e6ee0fb-b6d9-4116-90d4-35c890e2b0f7.nov) 08/14/2024 _x86_64_ (8 CPU) 04:42:26 LINUX RESTART (8 CPU) 04:43:01 AM CPU %user %nice %system %iowait %steal %idle 04:44:01 AM all 9.45 0.00 1.93 0.89 0.05 87.68 04:44:01 AM 0 8.82 0.00 2.04 0.59 0.07 88.49 04:44:01 AM 1 5.24 0.00 0.99 0.92 0.07 92.79 04:44:01 AM 2 23.47 0.00 3.49 1.10 0.05 71.89 04:44:01 AM 3 7.76 0.00 1.77 0.84 0.05 89.59 04:44:01 AM 4 7.59 0.00 1.34 0.67 0.03 90.37 04:44:01 AM 5 11.92 0.00 2.55 0.20 0.05 85.27 04:44:01 AM 6 9.42 0.00 1.14 0.58 0.02 88.85 04:44:01 AM 7 1.34 0.00 2.10 2.26 0.07 94.23 04:45:01 AM all 1.53 0.00 0.48 0.81 0.02 97.17 04:45:01 AM 0 1.25 0.00 0.48 0.35 0.02 97.90 04:45:01 AM 1 1.17 0.00 0.53 0.80 0.02 97.48 04:45:01 AM 2 0.92 0.00 0.43 0.13 0.05 98.46 04:45:01 AM 3 1.09 0.00 0.72 2.52 0.03 95.64 04:45:01 AM 4 1.02 0.00 0.50 1.40 0.02 97.06 04:45:01 AM 5 4.27 0.00 0.48 0.03 0.02 95.19 04:45:01 AM 6 2.00 0.00 0.47 0.70 0.02 96.81 04:45:01 AM 7 0.50 0.00 0.20 0.50 0.02 98.78 04:46:01 AM all 0.20 0.00 0.13 0.01 0.02 99.65 04:46:01 AM 0 0.37 0.00 0.02 0.00 0.00 99.62 04:46:01 AM 1 0.17 0.00 0.15 0.00 0.03 99.65 04:46:01 AM 2 0.08 0.00 0.07 0.03 0.03 99.78 04:46:01 AM 3 0.77 0.00 0.60 0.00 0.03 98.60 04:46:01 AM 4 0.02 0.00 0.02 0.00 0.00 99.97 04:46:01 AM 5 0.03 0.00 0.08 0.05 0.02 99.82 04:46:01 AM 6 0.00 0.00 0.03 0.00 0.02 99.95 04:46:01 AM 7 0.15 0.00 0.03 0.00 0.02 99.80 04:47:01 AM all 17.44 0.00 1.40 0.63 0.07 80.46 04:47:01 AM 0 14.09 0.00 0.68 0.00 0.07 85.16 04:47:01 AM 1 10.09 0.00 1.59 1.37 0.07 86.89 04:47:01 AM 2 12.32 0.00 1.09 0.22 0.08 86.28 04:47:01 AM 3 20.71 0.00 2.68 2.34 0.07 74.20 04:47:01 AM 4 20.99 0.00 0.50 0.00 0.07 78.44 04:47:01 AM 5 21.15 0.00 1.24 0.23 0.07 77.31 04:47:01 AM 6 25.08 0.00 2.24 0.45 0.07 72.16 04:47:01 AM 7 15.07 0.00 1.22 0.42 0.07 83.22 04:48:01 AM all 41.75 0.00 2.53 0.55 0.10 55.07 04:48:01 AM 0 45.09 0.00 2.09 0.05 0.13 52.64 04:48:01 AM 1 34.05 0.00 4.07 0.82 0.10 60.96 04:48:01 AM 2 31.53 0.00 2.16 1.98 0.08 64.25 04:48:01 AM 3 48.84 0.00 4.27 0.49 0.10 46.30 04:48:01 AM 4 50.21 0.00 1.64 0.47 0.12 47.57 04:48:01 AM 5 51.28 0.00 3.15 0.32 0.10 45.15 04:48:01 AM 6 40.39 0.00 1.51 0.12 0.10 57.88 04:48:01 AM 7 32.56 0.00 1.36 0.20 0.08 65.80 04:49:01 AM all 31.42 0.00 2.39 0.46 0.09 65.64 04:49:01 AM 0 33.04 0.00 1.54 0.27 0.10 65.05 04:49:01 AM 1 30.92 0.00 2.80 0.18 0.10 66.00 04:49:01 AM 2 36.03 0.00 3.39 0.22 0.10 60.26 04:49:01 AM 3 14.26 0.00 2.45 2.19 0.08 81.02 04:49:01 AM 4 37.15 0.00 3.09 0.44 0.08 59.24 04:49:01 AM 5 37.58 0.00 1.00 0.17 0.08 61.17 04:49:01 AM 6 32.79 0.00 3.18 0.12 0.08 63.82 04:49:01 AM 7 29.54 0.00 1.66 0.08 0.10 68.62 04:50:01 AM all 48.32 0.00 1.98 0.17 0.10 49.43 04:50:01 AM 0 41.10 0.00 1.49 0.00 0.10 57.31 04:50:01 AM 1 56.19 0.00 2.26 0.02 0.08 41.45 04:50:01 AM 2 51.20 0.00 1.84 0.45 0.10 46.41 04:50:01 AM 3 42.57 0.00 1.93 0.30 0.12 55.09 04:50:01 AM 4 49.71 0.00 2.16 0.29 0.12 47.73 04:50:01 AM 5 48.81 0.00 2.34 0.02 0.08 48.75 04:50:01 AM 6 51.53 0.00 1.61 0.27 0.12 46.48 04:50:01 AM 7 45.45 0.00 2.24 0.00 0.10 52.21 04:51:01 AM all 39.90 0.00 3.16 0.13 0.10 56.70 04:51:01 AM 0 25.49 0.00 1.90 0.07 0.08 72.46 04:51:01 AM 1 45.47 0.00 2.73 0.17 0.12 51.52 04:51:01 AM 2 57.88 0.00 4.23 0.08 0.10 37.70 04:51:01 AM 3 44.05 0.00 3.02 0.07 0.10 52.76 04:51:01 AM 4 33.25 0.00 4.45 0.22 0.10 61.98 04:51:01 AM 5 40.64 0.00 3.35 0.17 0.10 55.74 04:51:01 AM 6 32.42 0.00 3.37 0.05 0.10 64.06 04:51:01 AM 7 39.99 0.00 2.23 0.25 0.08 57.45 04:52:01 AM all 43.62 0.00 2.62 0.25 0.10 53.41 04:52:01 AM 0 48.58 0.00 2.06 0.20 0.10 49.06 04:52:01 AM 1 28.47 0.00 1.52 0.12 0.08 69.81 04:52:01 AM 2 52.02 0.00 7.39 0.30 0.10 40.19 04:52:01 AM 3 49.99 0.00 3.01 0.08 0.10 46.81 04:52:01 AM 4 32.03 0.00 1.65 0.05 0.10 66.17 04:52:01 AM 5 30.92 0.00 1.46 0.42 0.10 67.10 04:52:01 AM 6 60.11 0.00 1.25 0.00 0.12 38.52 04:52:01 AM 7 46.74 0.00 2.59 0.84 0.12 49.72 04:53:01 AM all 43.39 0.00 1.93 0.12 0.10 54.47 04:53:01 AM 0 49.12 0.00 1.15 0.00 0.08 49.64 04:53:01 AM 1 51.12 0.00 3.20 0.25 0.12 45.31 04:53:01 AM 2 32.96 0.00 1.19 0.08 0.12 65.64 04:53:01 AM 3 32.73 0.00 1.93 0.00 0.08 65.26 04:53:01 AM 4 47.85 0.00 2.66 0.35 0.10 49.04 04:53:01 AM 5 60.39 0.00 2.24 0.00 0.10 37.27 04:53:01 AM 6 49.41 0.00 1.47 0.03 0.10 48.99 04:53:01 AM 7 23.44 0.00 1.59 0.20 0.10 74.67 04:54:01 AM all 31.68 0.00 1.35 0.10 0.10 66.76 04:54:01 AM 0 37.88 0.00 1.42 0.03 0.12 60.55 04:54:01 AM 1 36.63 0.00 1.17 0.08 0.10 62.02 04:54:01 AM 2 36.17 0.00 1.35 0.10 0.12 62.26 04:54:01 AM 3 37.56 0.00 1.74 0.00 0.10 60.61 04:54:01 AM 4 12.55 0.00 1.20 0.50 0.08 85.66 04:54:01 AM 5 47.43 0.00 2.44 0.03 0.10 50.00 04:54:01 AM 6 33.97 0.00 0.84 0.03 0.10 65.06 04:54:01 AM 7 11.24 0.00 0.67 0.02 0.08 87.99 04:54:01 AM CPU %user %nice %system %iowait %steal %idle 04:55:01 AM all 43.08 0.00 1.88 0.09 0.10 54.85 04:55:01 AM 0 29.46 0.00 1.15 0.15 0.08 69.15 04:55:01 AM 1 45.78 0.00 1.71 0.02 0.10 52.40 04:55:01 AM 2 64.96 0.00 2.36 0.00 0.10 32.58 04:55:01 AM 3 27.14 0.00 1.89 0.23 0.08 70.65 04:55:01 AM 4 46.18 0.00 2.24 0.00 0.10 51.48 04:55:01 AM 5 52.43 0.00 2.09 0.13 0.10 45.24 04:55:01 AM 6 30.41 0.00 1.34 0.17 0.08 68.00 04:55:01 AM 7 48.23 0.00 2.30 0.03 0.13 49.30 04:56:01 AM all 45.80 0.00 1.74 0.17 0.09 52.20 04:56:01 AM 0 52.11 0.00 1.29 0.02 0.08 46.50 04:56:01 AM 1 39.11 0.00 0.79 0.25 0.10 59.76 04:56:01 AM 2 34.83 0.00 1.97 0.08 0.10 63.02 04:56:01 AM 3 43.22 0.00 1.94 0.82 0.08 53.94 04:56:01 AM 4 44.08 0.00 1.34 0.13 0.08 54.37 04:56:01 AM 5 64.72 0.00 1.74 0.00 0.12 33.42 04:56:01 AM 6 47.46 0.00 3.42 0.03 0.08 49.00 04:56:01 AM 7 40.94 0.00 1.39 0.00 0.08 57.59 04:57:01 AM all 16.71 0.00 0.37 0.12 0.05 82.75 04:57:01 AM 0 9.31 0.00 0.28 0.00 0.07 90.34 04:57:01 AM 1 3.46 0.00 0.37 0.90 0.03 95.24 04:57:01 AM 2 10.36 0.00 0.53 0.00 0.05 89.05 04:57:01 AM 3 30.20 0.00 0.27 0.00 0.07 69.47 04:57:01 AM 4 28.73 0.00 0.28 0.00 0.03 70.96 04:57:01 AM 5 29.07 0.00 0.22 0.00 0.05 70.66 04:57:01 AM 6 14.35 0.00 0.57 0.08 0.03 84.97 04:57:01 AM 7 8.18 0.00 0.43 0.00 0.03 91.35 04:58:01 AM all 8.72 0.00 1.22 0.07 0.05 89.95 04:58:01 AM 0 7.31 0.00 1.29 0.05 0.05 91.30 04:58:01 AM 1 5.28 0.00 0.85 0.02 0.03 93.82 04:58:01 AM 2 21.12 0.00 1.64 0.18 0.07 77.00 04:58:01 AM 3 10.35 0.00 0.99 0.03 0.03 88.60 04:58:01 AM 4 14.26 0.00 1.44 0.20 0.05 84.05 04:58:01 AM 5 4.71 0.00 1.07 0.00 0.03 94.19 04:58:01 AM 6 4.64 0.00 1.49 0.05 0.05 93.77 04:58:01 AM 7 2.07 0.00 0.97 0.02 0.05 96.89 Average: all 28.18 0.00 1.67 0.30 0.08 69.77 Average: 0 26.85 0.00 1.26 0.12 0.08 71.70 Average: 1 26.19 0.00 1.65 0.39 0.08 71.69 Average: 2 31.05 0.00 2.21 0.33 0.08 66.33 Average: 3 27.40 0.00 1.95 0.66 0.08 69.91 Average: 4 28.35 0.00 1.63 0.31 0.07 69.63 Average: 5 33.67 0.00 1.70 0.12 0.07 64.44 Average: 6 28.92 0.00 1.59 0.18 0.07 69.24 Average: 7 23.01 0.00 1.40 0.32 0.08 75.19