RHEL Kernel Performance Optimization, Characterization ... - Red Hat

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NUMA Nodes and Zones64bitEnd of RAMNode 1Normal ZoneNormal ZoneNode 016MB(or 4GB)0DMA Zone
Virtual Address Space Maps 32bit●3G/1G address space●4G/4G address space(<strong>RHEL</strong>3/4) 64bit●X86_64●IA64
Page 1 and 2: RHEL Kernel Performance Optimizatio
Page 3 and 4: Section 1 System Overview Proces
Page 5 and 6: Processor typesUniProcessorSymmet
Page 7 and 8: AMD64 System Numa Memory LayoutS1S2
Page 9: Physical Memory Supported/TestedRHE
Page 13 and 14: IncomesExpendituresDonkey owned 0.7
Page 15 and 16: Perzone page lists Active List
Page 17: Per NUMANode ResourcesMemory zone
Page 21 and 22: Linux 32bit Address Space(Hugemem
Page 23 and 24: Memory Pressure32 bitDMA Normal H
Page 25 and 26: User Memory PressureAnonymous/pagec
Page 27 and 28: PageCache/Anonymous memory split(Co
Page 29 and 30: 64bit Memory ReclamationRAMKernel
Page 31 and 32: Per Node/Zone Paging DynamicsUser A
Page 33 and 34: Buffered file system writeMemorycop
Page 35 and 36: Section 2 Analyzing System Perfo
Page 37 and 38: Red Hat Top ToolsCPU ToolsMemory To
Page 39 and 40: vmstat(paging vs swapping)vmstat 10
Page 41 and 42: iostat x of same IOzone EXT3 file
Page 43 and 44: free/numastat - memory allocation[r
Page 45 and 46: pstreeinit ─┬─/usr/bin/sealer
Page 47 and 48: The /proc filesystem /proc●meminf
Page 49 and 50: proc/slabinfoslabinfo version: 2
Page 51 and 52: 32bit /proc//maps[root@dhcp8336
Page 53 and 54: proc/vmstat(RHEL4/RHEL5)cat /proc/v
Page 55 and 56: Alt Sysrq M - RHEL3/NUMASysRq : Sho
Page 57 and 58: Alt Sysrq M - RHEL4 & 5/NUMAFree pa
Page 59 and 60: Alt Sysrq W and PSysRq : Show CPUsC
Page 61 and 62: oprofile - opcontrol and opreport c
Page 63 and 64: Profiling Tools: SystemTapTechnolog
Page 65 and 66: New Tuning Tools w/ RH MRGMRG Tunin
Page 67 and 68: Tuning how to set kernel paramet
Page 69 and 70:
OOM kills - swap space exhaustion(R
Page 71 and 72:
OOM kills - lowmem consumption(RHEL
Page 73 and 74:
Eliminating OOMkillsRHEL3●/proc/s
Page 75 and 76:
Performance Tuning - (RHEL3) /proc/
Page 77 and 78:
RHEL3 /proc/sys/vm/pagecachepagecac
Page 79 and 80:
Performance Tuning - (RHEL4 and RHE
Page 81 and 82:
RHEL4&5 /proc/sys/vm/min_free_kbyte
Page 83 and 84:
RHEL4&5 /proc/sys/vm/dirty_ratioAbs
Page 85 and 86:
dirty_ratio and dirty_background_ra
Page 87 and 88:
Pagecache TuningFilesystem/pagecach
Page 89 and 90:
(Hint)flushing the slabcache[tmp]#
Page 91 and 92:
x86●RHEL4 kernel selectionStandar
Page 93 and 94:
Problem 16GB x86 running SMP ker
Page 95 and 96:
Linux at 16cpus quadcore and b
Page 97 and 98:
Asynchronous I/O CharacteristicsR4
Page 99 and 100:
Disk IO tuning RHEL4/5RHEL4/5 -
Page 101 and 102:
Optimizing File System PerformanceU
Page 103 and 104:
McCalpin Streams Copy Bandwidth (1,
Page 105 and 106:
RHEL4&5 NUMAstat and NUMActlEXAMPLE
Page 107 and 108:
RHEL5.2 CPUspeed and performance:En
Page 109 and 110:
Effects of CPUspeed with RHEL5.2 Vi
Page 111 and 112:
EXT3, GFS, NFS Iozone w/ DirectIORH
Page 113 and 114:
Using HugeTLBfs w/ DatabasesRHEL4+5
Page 115 and 116:
Tuning Network Apps Messages/sec Di
Page 117 and 118:
RT Peformance of Network Apps Messa
Page 119 and 120:
General Performance Tuning Guidelin
Page 121 and 122:
Linux Performance Tuning References
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RHEL Kernel Performance Optimization, Characterization ... - Red Hat

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