From: Jiri Olsa <jolsa@redhat.com>
To: John Garry <john.garry@huawei.com>
Cc: peterz@infradead.org, mingo@redhat.com, acme@kernel.org,
mark.rutland@arm.com, alexander.shishkin@linux.intel.com,
namhyung@kernel.org, will@kernel.org, ak@linux.intel.com,
linuxarm@huawei.com, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, suzuki.poulose@arm.com,
james.clark@arm.com, zhangshaokun@hisilicon.com,
robin.murphy@arm.com
Subject: Re: [PATCH RFC 1/7] perf jevents: Add support for an extra directory level
Date: Mon, 10 Feb 2020 13:07:27 +0100 [thread overview]
Message-ID: <20200210120727.GD1907700@krava> (raw)
In-Reply-To: <1579876505-113251-2-git-send-email-john.garry@huawei.com>
On Fri, Jan 24, 2020 at 10:34:59PM +0800, John Garry wrote:
> Currently we support upto a level 2 directory, and level 2 would be in the
> form vendor/platform.
>
> Add support for a further level, to hold specific categories of events for
> when we want to segregate them for matching purposes.
>
> Signed-off-by: John Garry <john.garry@huawei.com>
> ---
> tools/perf/pmu-events/jevents.c | 11 ++++++++---
> 1 file changed, 8 insertions(+), 3 deletions(-)
>
> diff --git a/tools/perf/pmu-events/jevents.c b/tools/perf/pmu-events/jevents.c
> index 079c77b6a2fd..8af05b94a37d 100644
> --- a/tools/perf/pmu-events/jevents.c
> +++ b/tools/perf/pmu-events/jevents.c
> @@ -960,15 +960,20 @@ static int process_one_file(const char *fpath, const struct stat *sb,
> int level = ftwbuf->level;
> int err = 0;
>
> - if (level == 2 && is_dir) {
> + if (level >= 2 && is_dir) {
> + int count = 0;
> /*
> * For level 2 directory, bname will include parent name,
> * like vendor/platform. So search back from platform dir
> * to find this.
> + * Something similar for level 3 directory, but we're a PMU
> + * category folder, like vendor/platform/cpu.
> */
> bname = (char *) fpath + ftwbuf->base - 2;
> for (;;) {
> if (*bname == '/')
> + count++;
> + if (count == level - 1)
> break;
> bname--;
I was wondering why we just don't use different filename for that,
but it's true that the code transforms directory chain to the table
name.. so I guess another directory level is justified ;-)
jirka
> }
> @@ -981,13 +986,13 @@ static int process_one_file(const char *fpath, const struct stat *sb,
> level, sb->st_size, bname, fpath);
>
> /* base dir or too deep */
> - if (level == 0 || level > 3)
> + if (level == 0 || level > 4)
> return 0;
>
>
> /* model directory, reset topic */
> if ((level == 1 && is_dir && is_leaf_dir(fpath)) ||
> - (level == 2 && is_dir)) {
> + (level >= 2 && is_dir && is_leaf_dir(fpath))) {
> if (close_table)
> print_events_table_suffix(eventsfp);
>
> --
> 2.17.1
>
next prev parent reply other threads:[~2020-02-10 12:08 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-24 14:34 [PATCH RFC 0/7] perf pmu-events: Support event aliasing for system PMUs John Garry
2020-01-24 14:34 ` [PATCH RFC 1/7] perf jevents: Add support for an extra directory level John Garry
2020-02-10 12:07 ` Jiri Olsa [this message]
2020-02-10 15:47 ` John Garry
2020-01-24 14:35 ` [PATCH RFC 2/7] perf vendor events arm64: Relocate hip08 core events John Garry
2020-01-24 14:35 ` [PATCH RFC 3/7] perf jevents: Add support for a system events PMU John Garry
2020-02-10 12:07 ` Jiri Olsa
2020-02-10 12:07 ` Jiri Olsa
2020-02-10 15:55 ` John Garry
2020-02-11 14:46 ` Jiri Olsa
2020-01-24 14:35 ` [PATCH RFC 4/7] perf pmu: Rename uncore symbols to include system PMUs John Garry
2020-02-10 12:07 ` Jiri Olsa
2020-02-10 15:44 ` John Garry
2020-02-11 14:43 ` Jiri Olsa
2020-02-11 15:36 ` John Garry
2020-02-12 12:08 ` Jiri Olsa
2020-01-24 14:35 ` [PATCH RFC 5/7] perf pmu: Support matching by sysid John Garry
2020-02-10 12:07 ` Jiri Olsa
2020-02-10 16:22 ` John Garry
2020-02-11 13:47 ` Jiri Olsa
2020-02-11 15:07 ` John Garry
2020-02-12 10:08 ` John Garry
2020-02-12 12:16 ` Jiri Olsa
2020-02-12 12:24 ` John Garry
2020-01-24 14:35 ` [PATCH RFC 6/7] perf vendor events arm64: Relocate uncore events for hip08 John Garry
2020-01-24 14:35 ` [PATCH RFC 7/7] perf vendor events arm64: Add hip08 SMMUv3 PMCG IMP DEF events John Garry
2020-02-11 15:24 ` [PATCH RFC 0/7] perf pmu-events: Support event aliasing for system PMUs James Clark
2020-02-11 15:41 ` John Garry
2020-02-18 12:57 ` Will Deacon
2020-02-18 13:24 ` John Garry
2020-02-18 13:39 ` Will Deacon
2020-02-18 16:19 ` John Garry
2020-02-18 17:08 ` Mark Rutland
2020-02-18 17:58 ` John Garry
2020-02-18 18:13 ` Mark Rutland
2020-02-19 1:55 ` Joakim Zhang
2020-02-19 8:44 ` John Garry
2020-02-19 12:40 ` Joakim Zhang
2020-02-19 14:28 ` John Garry
2020-02-19 8:50 ` John Garry
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