What can i measure to estimate performance of non-speculative execution?Can you help me with my capacity...
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What can i measure to estimate performance of non-speculative execution?
Can you help me with my capacity planning?How can I measure the load capacity of my video encoding server and plan for scaling?Performance issue when configuring non-HA VM in clusterI am under DDoS. What can I do?What CPU upgrade can I fit to my server without busting something?What are the performance implications of Hyper-threading for single Nehalem+ CPU?How much harm can a non-root user cause?How can I estimate the request/second my server is capable of?Are there benchmarks that measure code execution with various CPUs? Nodejs server buildingCan I block a file execution with AppLocker?What gives better performance single proc - 16 core or dual proc - 8 core each?
Attempting to calculate worst-case long-term hosting cost increase as a multiple of the 2018 total, I ran into an issue that does not appear to be solvable with the canonical advice to "Benchmark your code on hardware similar to what you'll be using in production".
If my worst-case definition assumes the ineffectiveness of current "spectre" mitigations, not much currently available hardware works the way CPUs will have to work, then. Extrapolating from execution times on old ARM or ancient Intel Atoms did not yield consistent or expected results (got >30-fold increases, suspecting interference from memory bandwidth/caches).
What else can I measure to help me estimate how much more hardware-hungry my workload will be in case we have to abandon speculative execution altogether?
security central-processing-unit capacity-planning
asked 6 hours ago
anxanx
1,7491820
add a comment |
Attempting to calculate worst-case long-term hosting cost increase as a multiple of the 2018 total, I ran into an issue that does not appear to be solvable with the canonical advice to "Benchmark your code on hardware similar to what you'll be using in production".
If my worst-case definition assumes the ineffectiveness of current "spectre" mitigations, not much currently available hardware works the way CPUs will have to work, then. Extrapolating from execution times on old ARM or ancient Intel Atoms did not yield consistent or expected results (got >30-fold increases, suspecting interference from memory bandwidth/caches).
What else can I measure to help me estimate how much more hardware-hungry my workload will be in case we have to abandon speculative execution altogether?
security central-processing-unit capacity-planning
asked 6 hours ago
anxanx
1,7491820
add a comment |
Attempting to calculate worst-case long-term hosting cost increase as a multiple of the 2018 total, I ran into an issue that does not appear to be solvable with the canonical advice to "Benchmark your code on hardware similar to what you'll be using in production".
If my worst-case definition assumes the ineffectiveness of current "spectre" mitigations, not much currently available hardware works the way CPUs will have to work, then. Extrapolating from execution times on old ARM or ancient Intel Atoms did not yield consistent or expected results (got >30-fold increases, suspecting interference from memory bandwidth/caches).
What else can I measure to help me estimate how much more hardware-hungry my workload will be in case we have to abandon speculative execution altogether?
security central-processing-unit capacity-planning
asked 6 hours ago
anxanx
1,7491820
Attempting to calculate worst-case long-term hosting cost increase as a multiple of the 2018 total, I ran into an issue that does not appear to be solvable with the canonical advice to "Benchmark your code on hardware similar to what you'll be using in production".
If my worst-case definition assumes the ineffectiveness of current "spectre" mitigations, not much currently available hardware works the way CPUs will have to work, then. Extrapolating from execution times on old ARM or ancient Intel Atoms did not yield consistent or expected results (got >30-fold increases, suspecting interference from memory bandwidth/caches).
What else can I measure to help me estimate how much more hardware-hungry my workload will be in case we have to abandon speculative execution altogether?
security central-processing-unit capacity-planning
security central-processing-unit capacity-planning
asked 6 hours ago
anxanx
1,7491820
asked 6 hours ago
anxanx
1,7491820
asked 6 hours ago
anxanx
1,7491820
asked 6 hours ago
anxanx
1,7491820
asked 6 hours ago
anxanx
1,7491820
1,7491820
add a comment |
add a comment |
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