Performance Analysis and Tuning â Part 1 - Red Hat Summit
Performance Analysis and Tuning â Part 1 - Red Hat Summit
Performance Analysis and Tuning â Part 1 - Red Hat Summit
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Transparent Hugepagesecho never > /sys/kernel/mm/transparent_hugepages=never[root@dhcp-100-19-50 code]# time ./memory 15 0real 0m12.434suser 0m0.936ssys 0m11.416s# cat /proc/meminfoMemTotal: 16331124 kBAnonHugePages: 0 kB●●Boot argument: transparent_hugepages=always (enabled by default)# echo always > /sys/kernel/mm/redhat_transparent_hugepage/enabled# time ./memory 15GBreal0m7.024suser 0m0.073ssys 0m6.847s# cat /proc/meminfoMemTotal: 16331124 kBAnonHugePages: 15590528 kBSPEEDUP 12.4/7.0 = 1.77x, 56%
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