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RHEL6.5 で rmem_default、wmem_default、rmem_max、および wmem_max が減少しました

Solution Unverified - Updated -

Issue

  • RHEL6.5 で rmem_default、wmem_default、rmem_max、および wmem_max が減少しました。これにより、パフォーマンス・リグレッションが発生する場合があります。

RHEL6.5

# uname -r
2.6.32-431.el6.x86_64
# sysctl net.core.rmem_default net.core.wmem_default net.core.rmem_max net.core.wmem_max
net.core.rmem_default = 124928
net.core.wmem_default = 124928
net.core.rmem_max = 124928
net.core.wmem_max = 124928

RHEL6.4

# uname -r
2.6.32-358.el6.x86_64
# sysctl net.core.rmem_default net.core.wmem_default net.core.rmem_max net.core.wmem_max
net.core.rmem_default = 229376
net.core.wmem_default = 229376
net.core.rmem_max = 229376
net.core.wmem_max = 229376

Environment

  • Red Hat Enterprise Linux 6.5

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