diff options
| author | Eric Dumazet <edumazet@google.com> | 2026-01-17 08:34:47 +0000 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2026-01-31 16:16:06 -0800 |
| commit | cc20650a096370469919be0eb3b041fc5aa47b39 (patch) | |
| tree | f5cc3a17f3450b08a7475189a176ed1545487f46 /scripts | |
| parent | bec261fec6d41318e414c4064f2b67c6db628acd (diff) | |
scripts/bloat-o-meter: ignore __noinstr_text_start
__noinstr_text_start is adding noise to the script, ignore it.
For instance using __always_inline on __skb_incr_checksum_unnecessary and
CC=clang build.
Before this patch, __noinstr_text_start can show up and confuse us.
$ scripts/bloat-o-meter -t vmlinux.old vmlinux.new
add/remove: 0/2 grow/shrink: 3/0 up/down: 212/-206 (6)
Function old new delta
tcp6_gro_complete 208 283 +75
tcp4_gro_complete 376 449 +73
__noinstr_text_start 3536 3600 +64
__pfx___skb_incr_checksum_unnecessary 32 - -32
__skb_incr_checksum_unnecessary 174 - -174
Total: Before=25509464, After=25509470, chg +0.00%
After this patch we have a more precise result.
$ scripts/bloat-o-meter -t vmlinux.old vmlinux.new
add/remove: 0/2 grow/shrink: 2/0 up/down: 148/-206 (-58)
Function old new delta
tcp6_gro_complete 208 283 +75
tcp4_gro_complete 376 449 +73
__pfx___skb_incr_checksum_unnecessary 32 - -32
__skb_incr_checksum_unnecessary 174 - -174
Total: Before=25505928, After=25505870, chg -0.00%
Link: https://lkml.kernel.org/r/20260117083448.3877418-1-edumazet@google.com
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'scripts')
| -rwxr-xr-x | scripts/bloat-o-meter | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/scripts/bloat-o-meter b/scripts/bloat-o-meter index 888ce286a351..db5dd18dc2d5 100755 --- a/scripts/bloat-o-meter +++ b/scripts/bloat-o-meter @@ -42,6 +42,7 @@ def getsizes(file, format): if name.startswith("__se_sys"): continue if name.startswith("__se_compat_sys"): continue if name.startswith("__addressable_"): continue + if name.startswith("__noinstr_text_start"): continue if name == "linux_banner": continue if name == "vermagic": continue # statics and some other optimizations adds random .NUMBER |