From: Rasmus Villemoes <linux@rasmusvillemoes.dk>
To: Kent Overstreet <kent.overstreet@gmail.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
pmladek@suse.com
Cc: rostedt@goodmis.org, enozhatsky@chromium.org, willy@infradead.org
Subject: Re: [PATCH v4 00/34] Printbufs - new data structure for building strings
Date: Tue, 21 Jun 2022 08:11:49 +0200 [thread overview]
Message-ID: <46fcdf08-4646-afa0-c112-76d9335adb6c@rasmusvillemoes.dk> (raw)
In-Reply-To: <20220620004233.3805-1-kent.overstreet@gmail.com>
On 20/06/2022 02.41, Kent Overstreet wrote:
> Rasmus pointed out that -fno-strict-aliasing is going to cause gcc to generate
> nasty code, and indeed it unfortunately does but according to worst case
> scenario microbenchmarks it's not a problem for actual performance.
Well, that's not how I interpreted those numbers, but, except if they
showed an improvement, how much is acceptable is of course always a
matter of judgment.
However, what's really annoying and somewhat dishonest is that you're
not including those numbers, nor the methodology, in either the cover
letter or commit itself.
Rasmus
next prev parent reply other threads:[~2022-06-21 6:12 UTC|newest]
Thread overview: 86+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-20 0:41 [PATCH v4 00/34] Printbufs - new data structure for building strings Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 01/34] lib/printbuf: New data structure for printing strings Kent Overstreet
2022-06-20 4:44 ` David Laight
2022-06-20 15:30 ` Kent Overstreet
2022-06-20 15:53 ` David Laight
2022-06-20 16:14 ` Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 02/34] lib/string_helpers: Convert string_escape_mem() to printbuf Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 03/34] vsprintf: Convert " Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 04/34] lib/hexdump: " Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 05/34] vsprintf: %pf(%p) Kent Overstreet
2022-06-21 7:04 ` Rasmus Villemoes
2022-06-21 7:51 ` Kent Overstreet
2022-06-21 8:47 ` Rasmus Villemoes
2022-06-21 11:11 ` David Laight
2022-06-20 0:42 ` [PATCH v4 06/34] lib/string_helpers: string_get_size() now returns characters wrote Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 07/34] lib/printbuf: Heap allocation Kent Overstreet
2022-06-21 7:58 ` Rasmus Villemoes
2022-06-20 0:42 ` [PATCH v4 08/34] lib/printbuf: Tabstops, indenting Kent Overstreet
2022-06-21 8:14 ` Rasmus Villemoes
2022-06-20 0:42 ` [PATCH v4 09/34] lib/printbuf: Unit specifiers Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 10/34] lib/pretty-printers: prt_string_option(), prt_bitflags() Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 11/34] vsprintf: Improve number() Kent Overstreet
2022-06-21 8:33 ` Rasmus Villemoes
2022-06-20 0:42 ` [PATCH v4 12/34] vsprintf: prt_u64_minwidth(), prt_u64() Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 13/34] test_printf: Drop requirement that sprintf not write past nul Kent Overstreet
2022-06-21 7:19 ` Rasmus Villemoes
2022-06-21 7:52 ` Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 14/34] vsprintf: Start consolidating printf_spec handling Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 15/34] vsprintf: Refactor resource_string() Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 16/34] vsprintf: Refactor fourcc_string() Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 17/34] vsprintf: Refactor ip_addr_string() Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 18/34] vsprintf: Refactor mac_address_string() Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 19/34] vsprintf: time_and_date() no longer takes printf_spec Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 20/34] vsprintf: flags_string() " Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 21/34] vsprintf: Refactor device_node_string, fwnode_string Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 22/34] vsprintf: Refactor hex_string, bitmap_string_list, bitmap_string Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 23/34] Input/joystick/analog: Convert from seq_buf -> printbuf Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 24/34] mm/memcontrol.c: Convert to printbuf Kent Overstreet
2022-06-20 11:37 ` Michal Hocko
2022-06-20 15:13 ` Kent Overstreet
2022-06-20 15:52 ` Michal Hocko
2022-06-20 0:42 ` [PATCH v4 25/34] clk: tegra: bpmp: " Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 26/34] tools/testing/nvdimm: " Kent Overstreet
2022-06-24 19:32 ` Dan Williams
2022-06-24 23:42 ` Santosh Sivaraj
2022-07-01 6:32 ` Shivaprasad G Bhat
2022-06-20 0:42 ` [PATCH v4 27/34] powerpc: " Kent Overstreet
2022-06-20 0:42 ` Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 28/34] x86/resctrl: " Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 29/34] PCI/P2PDMA: " Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 30/34] tracing: trace_events_synth: " Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 31/34] d_path: prt_path() Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 32/34] ACPI/APEI: Add missing include Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 33/34] tracing: Convert to printbuf Kent Overstreet
2022-06-20 0:42 ` [PATCH v4 34/34] Delete seq_buf Kent Overstreet
2022-06-20 4:19 ` [PATCH v4 00/34] Printbufs - new data structure for building strings David Laight
2022-06-20 4:54 ` Matthew Wilcox
2022-06-20 8:00 ` David Laight
2022-06-20 15:07 ` Kent Overstreet
2022-06-20 15:21 ` David Laight
2022-06-21 0:38 ` Joe Perches
2022-06-21 0:57 ` Kent Overstreet
2022-06-21 1:26 ` Joe Perches
2022-06-21 2:10 ` Joe Perches
2022-06-26 19:53 ` [RFC[ Alloc in vsprintf Joe Perches
2022-06-26 20:06 ` Kent Overstreet
2022-06-26 20:13 ` Joe Perches
2022-06-26 20:19 ` Linus Torvalds
2022-06-26 20:39 ` Joe Perches
2022-06-26 20:51 ` Kent Overstreet
2022-06-26 21:02 ` Joe Perches
2022-06-26 21:10 ` Kent Overstreet
2022-06-26 20:54 ` Linus Torvalds
2022-06-27 8:25 ` David Laight
2022-06-28 2:56 ` Kent Overstreet
2022-06-21 2:31 ` [PATCH v4 00/34] Printbufs - new data structure for building strings Kent Overstreet
2022-06-21 3:11 ` Kent Overstreet
2022-06-21 6:11 ` Rasmus Villemoes [this message]
2022-06-21 8:01 ` Kent Overstreet
2022-07-19 23:15 ` Steven Rostedt
2022-07-19 23:43 ` Kent Overstreet
2022-07-20 0:05 ` Steven Rostedt
2022-07-20 0:17 ` Kent Overstreet
2022-07-20 1:11 ` Steven Rostedt
2022-07-20 1:31 ` Kent Overstreet
2022-07-20 1:37 ` Steven Rostedt
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