From: Gennady Kupava <gennady.kupava@gmail.com>
To: Johannes Sixt <j6t@kdbg.org>
Cc: git <git@vger.kernel.org>, Gennady Kupava <gkupava@bloomberg.net>
Subject: Re: [PATCH 2/2] Reduce performance cost of the trace if trace category is disabled
Date: Sun, 19 Nov 2017 13:18:31 +0000 [thread overview]
Message-ID: <CAPu-DQqO5gfr3H_vHu3JBeJrkCmh6qQ=vs=GOkLKjtE9=tDgcg@mail.gmail.com> (raw)
In-Reply-To: <d9076fef-c90c-63f2-5e0e-37293810e3d9@kdbg.org>
Right, this trace is actually not used anywhere, so only check was
compilation. Will fix that.
On 19 November 2017 at 08:27, Johannes Sixt <j6t@kdbg.org> wrote:
> Am 19.11.2017 um 01:42 schrieb gennady.kupava@gmail.com:
>>
>> +#define trace_printf_key(key, ...)
>> \
>> + do {
>> \
>> + if (trace_pass_fl(key))
>> \
>> + trace_printf_key_fl(TRACE_CONTEXT, __LINE__, key,
>> \
>> + __VA_ARGS__);
>> \
>> + } while(0)
>> +
>> +#define trace_printf(...) trace_printf_key(&trace_default_key,
>> __VA_ARGS__);
>> +
>> +#define trace_argv_printf(argv, ...)
>> \
>> + do {
>> \
>> + if (trace_pass_fl(&trace_default_key))
>> \
>> + trace_argv_printf_fl(TRACE_CONTEXT, __LINE__,
>> \
>> + argv, __VA_ARGS__);
>> \
>> + } while(0)
>> +
>> +#define trace_strbuf(key, data)
>> \
>> + do {
>> \
>> + if (trace_pass_fl(key))
>> \
>> + trace_strbuf_fl(TRACE_CONTEXT, __LINE__, key,
>> data);\
>> + } while(0)
>> +
>> +#define trace_performance(nanos, ...)
>> \
>> + do {
>> \
>> + if (trace_pass_fl(key))
>> \
>
>
> The token "key" here looks suspicious. Did you mean &trace_perf_key?
>
>> + trace_performance_fl(TRACE_CONTEXT, __LINE__,
>> nanos,\
>> + __VA_ARGS__);
>> \
>> + } while(0)
>> +
>> +#define trace_performance_since(start, ...)
>> \
>> + do {
>> \
>> + if (trace_pass_fl(&trace_perf_key))
>> \
>> + trace_performance_fl(TRACE_CONTEXT, __LINE__,
>> \
>> + getnanotime() - (start),
>> \
>> + __VA_ARGS__);
>> \
>> + } while(0)
>> /* backend functions, use non-*fl macros instead */
>> __attribute__((format (printf, 4, 5)))
>
>
> -- Hannes
next prev parent reply other threads:[~2017-11-19 13:24 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-11 19:28 [PATCH] Reduce performance penalty for turned off traces gennady.kupava
2017-11-12 14:17 ` Jeff King
2017-11-12 23:24 ` Gennady Kupava
2017-11-17 22:12 ` Jeff King
2017-11-15 19:14 ` Stefan Beller
2017-11-17 22:16 ` Jeff King
2017-11-19 0:42 ` [PATCH 1/2] Simplify tracing code by removing trace key normalization concept gennady.kupava
2017-11-19 0:42 ` [PATCH 2/2] Reduce performance cost of the trace if trace category is disabled gennady.kupava
2017-11-19 8:27 ` Johannes Sixt
2017-11-19 13:18 ` Gennady Kupava [this message]
2017-11-19 2:19 ` [PATCH 1/2] Simplify tracing code by removing trace key normalization concept Junio C Hamano
2017-11-19 13:16 ` Gennady Kupava
2017-11-20 0:24 ` Junio C Hamano
2017-11-20 4:59 ` Junio C Hamano
2017-11-26 20:11 ` [PATCH 1/2] trace: remove trace key normalization gennady.kupava
2017-11-26 20:11 ` [PATCH 2/2] trace: improve performance while category is disabled gennady.kupava
2017-11-27 1:21 ` Junio C Hamano
2017-11-27 1:32 ` Junio C Hamano
2017-11-27 3:25 ` Junio C Hamano
2017-11-27 10:12 ` Gennady Kupava
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