probe::vm.write_shared_copy(3stap) [centos man page]

PROBE::VM.WRITE_SH(3stap)					   Memory Tapset					 PROBE::VM.WRITE_SH(3stap)

NAME

       probe::vm.write_shared_copy - Page copy for shared page write

SYNOPSIS

       vm.write_shared_copy

VALUES

       name
	   Name of the probe point

       zero
	   boolean indicating whether it is a zero page (can do a clear instead of a copy)

       address
	   The address of the shared write

CONTEXT

       The process attempting the write.

DESCRIPTION

       Fires when a write to a shared page requires a page copy. This is always preceded by a vm.write_shared.

SystemTap Tapset Reference					     June 2014						 PROBE::VM.WRITE_SH(3stap)

tapset::memory(3stap)													     tapset::memory(3stap)

NAME

       tapset::memory - systemtap memory tapset

DESCRIPTION

	This family of probe points is used to probe memory-related events.

       vm_fault_contains
	      Test return value for page fault reason

	      See function::vm_fault_contains(3stap)
	       for details.

       vm.pagefault
	      Records that a page fault occurred

	       See probe::vm.pagefault(3stap)
	       for details.

       vm.pagefault.return
	      Indicates what type of fault occurred

	       See probe::vm.pagefault.return(3stap)
	       for details.

       addr_to_node
	      Returns which node a given address belongs to within a NUMA system

	      See function::addr_to_node(3stap)
	       for details.

       vm.write_shared
	      Attempts at writing to a shared page

	       See probe::vm.write_shared(3stap)
	       for details.

       vm.write_shared_copy
	      Page copy for shared page write

	       See probe::vm.write_shared_copy(3stap)
	       for details.

       vm.mmap
	      Fires when an mmap is requested

	       See probe::vm.mmap(3stap)
	       for details.

       vm.munmap
	      Fires when an munmap is requested

	       See probe::vm.munmap(3stap)
	       for details.

       vm.brk Fires when a brk is requested (i.e. the heap will be resized)

	       See probe::vm.brk(3stap)
	       for details.

       vm.oom_kill
	      Fires when a thread is selected for termination by the OOM killer

	       See probe::vm.oom_kill(3stap)
	       for details.

       vm.kmalloc
	      Fires when kmalloc is requested

	       See probe::vm.kmalloc(3stap)
	       for details.

       vm.kmem_cache_alloc
	      Fires when kmem_cache_alloc is requested

	       See probe::vm.kmem_cache_alloc(3stap)
	       for details.

       vm.kmalloc_node
	      Fires when kmalloc_node is requested

	       See probe::vm.kmalloc_node(3stap)
	       for details.

       vm.kmem_cache_alloc_node
	      Fires when kmem_cache_alloc_node is requested

	       See probe::vm.kmem_cache_alloc_node(3stap)
	       for details.

       vm.kfree
	      Fires when kfree is requested

	       See probe::vm.kfree(3stap)
	       for details.

       vm.kmem_cache_free
	      Fires when kmem_cache_free is requested

	       See probe::vm.kmem_cache_free(3stap)
	       for details.

SEE ALSO

	 function::vm_fault_contains(3stap),	function::addr_to_node(3stap),	  probe::vm.pagefault(3stap),  probe::vm.pagefault.return(3stap),
       probe::vm.write_shared(3stap),	     probe::vm.write_shared_copy(3stap),	probe::vm.mmap(3stap),	      probe::vm.munmap(3stap),
       probe::vm.brk(3stap),	      probe::vm.oom_kill(3stap),	  probe::vm.kmalloc(3stap),	    probe::vm.kmem_cache_alloc(3stap),
       probe::vm.kmalloc_node(3stap),	 probe::vm.kmem_cache_alloc_node(3stap),    probe::vm.kfree(3stap),    probe::vm.kmem_cache_free(3stap),
       stap(1), stapprobes(3stap)

IBM
									---						     tapset::memory(3stap)