1PROBE::NFS.AOP.W(3stap) Network File Storage Tapsets PROBE::NFS.AOP.W(3stap)
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6 probe::nfs.aop.write_begin - NFS client begin to write data
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9 nfs.aop.write_begin
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12 ino
13 inode number
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15 dev
16 device identifier
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18 __page
19 the address of page
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21 page_index
22 offset within mapping, can used a page identifier and position
23 identifier in the page frame
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25 size
26 write bytes
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28 offset
29 start address of this write operation
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31 to
32 end address of this write operation
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35 Occurs when write operation occurs on nfs. It prepare a page for
36 writing, look for a request corresponding to the page. If there is one,
37 and it belongs to another file, it flush it out before it tries to copy
38 anything into the page. Also do the same if it finds a request from an
39 existing dropped page
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42 tapset::nfs(3stap)
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46SystemTap Tapset Reference June 2018 PROBE::NFS.AOP.W(3stap)