1PROBE::VM.WRITE_SH(3stap) Memory Tapset PROBE::VM.WRITE_SH(3stap)
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6 probe::vm.write_shared_copy - Page copy for shared page write
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9 vm.write_shared_copy
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12 name
13 Name of the probe point
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15 zero
16 boolean indicating whether it is a zero page (can do a clear
17 instead of a copy)
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19 address
20 The address of the shared write
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23 The process attempting the write.
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26 Fires when a write to a shared page requires a page copy. This is
27 always preceded by a vm.write_shared.
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30 tapset::memory(3stap)
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34SystemTap Tapset Reference June 2018 PROBE::VM.WRITE_SH(3stap)