| Commit message (Collapse) | Author | Age | Files | Lines |
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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This prevents first update from showing incorrect CPU usage data
function old new delta
handle_input 620 643 +23
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Also, go for unsigned divisions.
function old new delta
init_cpu 61 73 +12
collect_cpu 444 422 -22
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(add/remove: 0/0 grow/shrink: 1/1 up/down: 12/-22) Total: -10 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Back in 2007, commit 0c97c9d43707 ("'simple' error message functions by
Loic Grenie") introduced bb_simple_perror_msg() to allow for a lower
overhead call to bb_perror_msg() when only a string was being printed
with no parameters. This saves space for some CPU architectures because
it avoids the overhead of a call to a variadic function. However there
has never been a simple version of bb_error_msg(), and since 2007 many
new calls to bb_perror_msg() have been added that only take a single
parameter and so could have been using bb_simple_perror_message().
This changeset introduces 'simple' versions of bb_info_msg(),
bb_error_msg(), bb_error_msg_and_die(), bb_herror_msg() and
bb_herror_msg_and_die(), and replaces all calls that only take a
single parameter, or use something like ("%s", arg), with calls to the
corresponding 'simple' version.
Since it is likely that single parameter calls to the variadic functions
may be accidentally reintroduced in the future a new debugging config
option WARN_SIMPLE_MSG has been introduced. This uses some macro magic
which will cause any such calls to generate a warning, but this is
turned off by default to avoid use of the unpleasant macros in normal
circumstances.
This is a large changeset due to the number of calls that have been
replaced. The only files that contain changes other than simple
substitution of function calls are libbb.h, libbb/herror_msg.c,
libbb/verror_msg.c and libbb/xfuncs_printf.c. In miscutils/devfsd.c,
networking/udhcp/common.h and util-linux/mdev.c additonal macros have
been added for logging so that single parameter and multiple parameter
logging variants exist.
The amount of space saved varies considerably by architecture, and was
found to be as follows (for 'defconfig' using GCC 7.4):
Arm: -92 bytes
MIPS: -52 bytes
PPC: -1836 bytes
x86_64: -938 bytes
Note that for the MIPS architecture only an exception had to be made
disabling the 'simple' calls for 'udhcp' (in networking/udhcp/common.h)
because it made these files larger on MIPS.
Signed-off-by: James Byrne <james.byrne@origamienergy.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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I noticed that the 'used' values from busybox free and
procps-ng free differed so I looked into why. It turns
out that procps-ng uses the "SReclaimable" value as
part of the cached value.
This was changed in
procps-ng commit 05d751c4f076a2f0118b914c5e51cfbb4762ad8e
function old new delta
free_main 633 653 +20
Signed-off-by: Lukas Rusak <lorusak@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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In particular useful when you want to evaluate the threads in batch mode:
top -Hbn1
function old new delta
top_main 928 941 +13
packed_usage 33317 33319 +2
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(add/remove: 0/0 grow/shrink: 2/0 up/down: 15/0) Total: 15 bytes
Signed-off-by: Philippe Belet <philippe.belet@nokia.com>
Signed-off-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
watch_main 212 232 +20
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Busybox sysctl is incompatible with procps when '.' appears in
directory name, mostly happens with VLANs.
busybox syntax (since 2008): net.ipv4.conf.eth0.100.mc_forwarding
procps syntax (since 2002): net.ipv4.conf.eth0/100.mc_forwarding
(supported by both: net/ipv4/conf/eth0.100/mc_forwarding)
Use procps syntax for output; for input, allow both.
function old new delta
sysctl_dots_to_slashes 86 143 +57
sysctl_act_on_setting 443 453 +10
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(add/remove: 0/0 grow/shrink: 2/0 up/down: 67/0) Total: 67 bytes
Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
sysctl_dots_to_slashes 71 86 +15
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
sysctl_act_recursive 163 167 +4
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
sysctl_act_on_setting 451 445 -6
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Implement read_cmdline() for WIN32 by storing the command line in
the same way as the applet name.
The applet name is actually used for the comm column which is
truncated to COMM_LEN. Using this as the size of the bb_comm
array avoids the need to calculate MAX_APPLET_NAME_LEN.
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Show estimated available memory if this is provided by the
kernel. See [1] for the full story.
[1]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=34e431b0ae398fc54ea69ff85ec700722c9da773
function old new delta
free_main 537 633 +96
parse_cached_kb 85 - -85
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(add/remove: 0/1 grow/shrink: 1/0 up/down: 96/-85) Total: 11 bytes
Signed-off-by: Guillermo Rodriguez <guille.rodriguez@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
archivefile 167 176 +9
Signed-off-by: Andre Goddard Rosa <andre.rosa@lge.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
parse_duration_str - 168 +168
sleep_for_duration - 157 +157
top_main 885 928 +43
timeout_main 269 312 +43
handle_input 571 614 +43
duration_suffixes - 40 +40
sfx 40 - -40
sleep_main 364 79 -285
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(add/remove: 4/1 grow/shrink: 3/1 up/down: 494/-325) Total: 169 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Kconfig-language.txt was deleted in commit 4fa499a17b52b back in 2006.
Move to docs/ as suggested by Xabier Oneca:
http://lists.busybox.net/pipermail/busybox/2014-May/080914.html
Also update references to it everywhere.
Signed-off-by: Kartik Agaram <akkartik@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
handle_input 549 560 +11
top_main 889 891 +2
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
display_process_list 1018 999 -19
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Microsoft Windows has only limited support for signals. busybox-w32
initially papered over this fact by adding definitions for unsupported
signals and signal-handling functions.
Remove this fake code and deal with the consequences by excluding
anything that fails to compile as a result.
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
parse_cached_kb - 85 +85
free_main 580 537 -43
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(add/remove: 1/0 grow/shrink: 0/1 up/down: 85/-43) Total: 42 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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