shak-larry-jeder-perf-and-tuning-summit14-part1-final

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C-group Dynamic resource control Dynamic CPU Change 200K Oracle OLTP Workload Transactions Per Minute 180K 160K 140K 120K 100K 80K 60K 40K 20K K cgrp 1 (4), cgrp 2 (32) cgrp 1 (32), cgrp 2 (4) Instance 1 Instance 2 Control Group CPU Count
Cgroup default mount points RHEL6 # cat /etc/cgconfig.conf mount { cpuset= /cgroup/cpuset; cpu = /cgroup/cpu; cpuacct = /cgroup/cpuacct; memory = /cgroup/memory; devices = /cgroup/devices; freezer = /cgroup/freezer; net_cls = /cgroup/net_cls; blkio = /cgroup/blkio; } RHEL7 /sys/fs/cgroup/ # ls -l /cgroup drwxr-xr-x 2 root root 0 Jun 21 13:33 blkio drwxr-xr-x 3 root root 0 Jun 21 13:33 cpu drwxr-xr-x 3 root root 0 Jun 21 13:33 cpuacct drwxr-xr-x 3 root root 0 Jun 21 13:33 cpuset drwxr-xr-x 3 root root 0 Jun 21 13:33 devices drwxr-xr-x 3 root root 0 Jun 21 13:33 freezer drwxr-xr-x 3 root root 0 Jun 21 13:33 memory drwxr-xr-x 2 root root 0 Jun 21 13:33 net_cls RHEL7 #ls -l /sys/fs/cgroup/ drwxr-xr-x. 2 root root 0 Mar 20 16:40 blkio drwxr-xr-x. 2 root root 0 Mar 20 16:40 cpu,cpuacct drwxr-xr-x. 2 root root 0 Mar 20 16:40 cpuset drwxr-xr-x. 2 root root 0 Mar 20 16:40 devices drwxr-xr-x. 2 root root 0 Mar 20 16:40 freezer drwxr-xr-x. 2 root root 0 Mar 20 16:40 hugetlb drwxr-xr-x. 3 root root 0 Mar 20 16:40 memory drwxr-xr-x. 2 root root 0 Mar 20 16:40 net_cls drwxr-xr-x. 2 root root 0 Mar 20 16:40 <strong>perf</strong>_event drwxr-xr-x. 4 root root 0 Mar 20 16:40 systemd
Page 1 and 2: Performance Analysis and Tuning - P
Page 3 and 4: Red Hat Enterprise Linux Performanc
Page 5 and 6: RHEL Benchmark platform of choice 2
Page 7 and 8: Tuned for RHEL7 Overview and What's
Page 9 and 10: Yes, but why do I care ?
Page 11 and 12: Tuned: Network Throughput Boost 39.
Page 13 and 14: Tuned: Updates for RHEL7 • Instal
Page 15 and 16: Tuned: Updates for RHEL7 • Re-wri
Page 21 and 22: Tuned: Your Custom Profiles Parents
Page 23 and 24: RHEL7 Features
Page 25 and 26: What is NUMA? •Non Uniform Memory
Page 27 and 28: Per NUMA-Node Resources •Memory z
Page 29 and 30: zone_reclaim_mode •Controls NUMA
Page 31 and 32: Visualize CPUs via lstopo (hwloc rp
Page 33 and 34: RHEL7 Autonuma-Balance Performance
Page 35 and 36: Autonuma-balance and numad aligns p
Page 37 and 38: How to manage NUMA manually •Rese
Page 39 and 40: numastat shows guest memory alignme
Page 41: Resource Management using cgroups A
Page 45 and 46: cgroups # echo 0-3 > cpuset.cpus #
Page 47 and 48: cpu.shares default cpu.shares throt
Page 49 and 50: Cgroup OOMkills # mkdir -p /sys/fs/
Page 51 and 52: Cgroup node migration # cd /sys/fs/
Page 53 and 54: RHEL7 Container Scaling: Subsystems
Page 55 and 56: Cgroup automation with Libvirt and
Page 57 and 58: RHEL Scheduler
Page 59 and 60: Finer Grained Scheduler Tuning •
Page 61 and 62: fork() behavior sched_child_runs_fi
Page 63 and 64: 2MB standard Hugepages # echo 2000
Page 65 and 66: Transparent Hugepages echo never >
Page 67 and 68: Helpful Utilities Supportability NU

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