From 2a064a9d1bbb8de6ce489b685cce026eee167cd2 Mon Sep 17 00:00:00 2001 From: johannst Date: Tue, 17 Mar 2020 22:48:49 +0000 Subject: deploy: fb719f52b73920fb18c7f3080ebb1fc73300be49 --- pidstat.html | 32 ++++++++++++++++++++++---------- 1 file changed, 22 insertions(+), 10 deletions(-) (limited to 'pidstat.html') diff --git a/pidstat.html b/pidstat.html index 10ad7a1..dbf5445 100644 --- a/pidstat.html +++ b/pidstat.html @@ -81,7 +81,7 @@ @@ -149,15 +149,27 @@

pidstat(1)

-

Trace minor/major page faults.

-
pidstat -r -p <pid> [interval]
-  minor_pagefault: happens when the page needed is already in memory but not
-                   allocated to the faulting process, in that case the kernel
-                   only has to create a new page-table entry pointing to the
-                   shared physical page
-  major_pagefault: happends when the page needed is NOT in memory, the kernel
-                   has to create a new page-table entry and populate the
-                   physical page
+
pidstat [opt] [interval] [cont]
+  -U [user]     show username instead UID, optionally only show for user
+  -r            memory statistics
+  -d            I/O statistics
+  -h            single line per process and no lines with average
+

+
Page fault and memory utilization

+
pidstat -r -p <pid> [interval] [count]
+

+
minor_pagefault: Happens when the page needed is already in memory but not
+                 allocated to the faulting process, in that case the kernel
+                 only has to create a new page-table entry pointing to the
+                 shared physical page (not required to load a memory page from
+                 disk).
+
+major_pagefault: Happens when the page needed is NOT in memory, the kernel
+                 has to create a new page-table entry and populate the
+                 physical page (required to load a memory page from disk).
+

+
I/O statistics

+
pidstat -d -p <pid> [interval] [count]
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