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1.\" Copyright (c) 2012, Apple Inc. All rights reserved.
2.\"
3.Dd June 28, 2012
4.Dt LTOP 1
5.Os "Mac OS X"
6.Sh NAME
7.Nm ltop
8.Nd Display ledger information for processes on the system
9.Sh SYNOPSIS
10.Nm ltop
11.Bk -words
12.Fl h
13.Pp
14.Nm ltop
15.Op Fl dL
16.Op Fl g Ar group
17.Op Fl p Ar pid
18.Op Fl r Ar resource
19.Op Ar interval
20.Ek
21.Sh DESCRIPTION
22.Nm ltop
23displays the contents of system ledgers maintained by the kernel for each process in the system. Ledgers are a general accounting mechanism that the kernel uses to track and limit things like CPU time and memory usage.
24.Pp
25If the optional
26.Ar interval
27is specified, then
28.Nm
29will display the ledger contents every interval seconds.
30.Pp
31The options are as follows:
32.Bl -tag -width indent
33.\" ==========
34.It Fl d
35In conjunction with
36.Ar interval ,
37display the rate of change for each value, as compared to the previous sample displayed.
38.\" ==========
39.It Fl L
40Display template info. Shows which resources are tracked, and lists the associated units.
41.\" ==========
42.It Fl g Ar group
43Only display info for the ledgers associated with
44.Ar group .
45Group topology can be seen via the
46.Fl L
47option.
48.\" ==========
49.It Fl p Ar pid
50Only display info for process
51.Ar pid .
52.\" ==========
53.It Fl r Ar resource
54Only display info for resource
55.Ar resource .
56.\" ==========
57.El
58.Sh SEE ALSO
59.Xr top 1