Shielding real-time workloads from OS jitter due to expedited grace periods
First Claim
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1. A method for shielding real-time workloads from operating system (OS) jitter due to expedited read-copy update (RCU) grace periods, said method comprising:
- setting a kernel parameter indicating that expedited RCU grace periods are to be suppressed;
checking said kernel parameter to determine if it is set; and
invoking a normal non-expedited RCU grace period in response to attempted invocation of an expedited RCU grace period if said checking reveals that said kernel parameter is set.
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Abstract
A technique for shielding real-time workloads from operating system (OS) jitter due to expedited read-copy update (RCU) grace periods. In accordance with the disclosed technique, a kernel parameter is set to indicate that expedited RCU grace periods are to be suppressed. The kernel parameter is checked to see if it is set. A normal non-expedited RCU grace period is invoked in response to attempted invocation of an expedited RCU grace period if the check reveals that the kernel parameter is set.
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Citations
7 Claims
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1. A method for shielding real-time workloads from operating system (OS) jitter due to expedited read-copy update (RCU) grace periods, said method comprising:
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setting a kernel parameter indicating that expedited RCU grace periods are to be suppressed; checking said kernel parameter to determine if it is set; and invoking a normal non-expedited RCU grace period in response to attempted invocation of an expedited RCU grace period if said checking reveals that said kernel parameter is set. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification