A list with information about memory usage. Portable fields:
rss
: "Resident Set Size", this is the non-swapped physical memory a
process has used. On UNIX it matches "top"<U+2018>s 'RES' column (see doc). On
Windows this is an alias for wset
field and it matches "Memory"
column of taskmgr.exe
.
vmem
: "Virtual Memory Size", this is the total amount of virtual
memory used by the process. On UNIX it matches "top"<U+2018>s 'VIRT' column
(see doc). On Windows this is an alias for the pagefile
field and
it matches the "Working set (memory)" column of taskmgr.exe
.
ps_memory_info(p)
Process handle.
Named real vector.
Non-portable fields:
shared
: (Linux) memory that could be potentially shared with other
processes. This matches "top"<U+2018>s 'SHR' column (see doc).
text
: (Linux): aka 'TRS' (text resident set) the amount of memory
devoted to executable code. This matches "top"<U+2018>s 'CODE' column (see
doc).
data
: (Linux): aka 'DRS' (data resident set) the amount of physical
memory devoted to other than executable code. It matches "top"<U+2018>s
'DATA' column (see doc).
lib
: (Linux): the memory used by shared libraries.
dirty
: (Linux): the number of dirty pages.
pfaults
: (macOS): number of page faults.
pageins
: (macOS): number of actual pageins.
For on explanation of Windows fields see the PROCESS_MEMORY_COUNTERS_EX structure.
Throws a zombie_process()
error for zombie processes.
Other process handle functions:
ps_children()
,
ps_cmdline()
,
ps_connections()
,
ps_cpu_times()
,
ps_create_time()
,
ps_cwd()
,
ps_environ()
,
ps_exe()
,
ps_handle()
,
ps_interrupt()
,
ps_is_running()
,
ps_kill()
,
ps_name()
,
ps_num_fds()
,
ps_num_threads()
,
ps_open_files()
,
ps_pid()
,
ps_ppid()
,
ps_resume()
,
ps_send_signal()
,
ps_status()
,
ps_suspend()
,
ps_terminal()
,
ps_terminate()
,
ps_uids()
,
ps_username()
# NOT RUN {
p <- ps_handle()
p
ps_memory_info(p)
# }
Run the code above in your browser using DataCamp Workspace