From: David Ahern <dsahern@gmail.com>
To: Yunlong Song <yunlong.song@huawei.com>,
a.p.zijlstra@chello.nl, paulus@samba.org, mingo@redhat.com,
acme@kernel.org
Cc: linux-kernel@vger.kernel.org, wangnan0@huawei.com
Subject: Re: [PATCH 2/9] perf sched replay: Increase the MAX_PID value to fix assertion failure problem
Date: Tue, 31 Mar 2015 08:25:56 -0600 [thread overview]
Message-ID: <551AAE74.8060402@gmail.com> (raw)
In-Reply-To: <1427809596-29559-3-git-send-email-yunlong.song@huawei.com>
On 3/31/15 7:46 AM, Yunlong Song wrote:
> diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
> index a1893e8..c466104 100644
> --- a/tools/perf/builtin-sched.c
> +++ b/tools/perf/builtin-sched.c
> @@ -28,7 +28,7 @@
> #define MAX_CPUS 4096
> #define COMM_LEN 20
> #define SYM_LEN 129
> -#define MAX_PID 65536
> +#define MAX_PID 1024000
>
> struct sched_atom;
# cat /proc/sys/kernel/pid_max
1048576
so your proposed change is still not high enough for what I need.
It would be best to make it dynamic, not static, with run time
reallocations as needed.
next prev parent reply other threads:[~2015-03-31 14:26 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-31 13:46 [PATCH 0/9] perf sched replay: Make some improvements and fixes Yunlong Song
2015-03-31 13:46 ` [PATCH 1/9] perf sched replay: Use struct task_desc instead of struct task_task for correct meaning Yunlong Song
2015-04-08 15:11 ` [tip:perf/core] " tip-bot for Yunlong Song
2015-03-31 13:46 ` [PATCH 2/9] perf sched replay: Increase the MAX_PID value to fix assertion failure problem Yunlong Song
2015-03-31 14:25 ` David Ahern [this message]
2015-04-01 7:10 ` Yunlong Song
2015-04-08 15:11 ` [tip:perf/core] " tip-bot for Yunlong Song
2015-03-31 13:46 ` [PATCH 3/9] perf sched replay: Alloc the memory of pid_to_task dynamically to adapt to the unexpected change of pid_max Yunlong Song
2015-03-31 14:32 ` David Ahern
2015-03-31 15:56 ` Arnaldo Carvalho de Melo
2015-04-01 7:06 ` Yunlong Song
2015-04-07 13:23 ` Yunlong Song
2015-04-07 15:02 ` Arnaldo Carvalho de Melo
2015-03-31 20:25 ` Arnaldo Carvalho de Melo
2015-03-31 22:26 ` David Ahern
2015-03-31 22:35 ` Arnaldo Carvalho de Melo
2015-04-01 7:23 ` Yunlong Song
2015-04-08 15:12 ` [tip:perf/core] " tip-bot for Yunlong Song
2015-03-31 13:46 ` [PATCH 4/9] perf sched replay: Realloc the memory of pid_to_task stepwise to adapt to the different pid_max configurations Yunlong Song
2015-04-08 15:12 ` [tip:perf/core] " tip-bot for Yunlong Song
2015-03-31 13:46 ` [PATCH 5/9] perf sched replay: Fix the segmentation fault problem caused by pr_err in threads Yunlong Song
2015-04-08 15:12 ` [tip:perf/core] " tip-bot for Yunlong Song
2015-03-31 13:46 ` [PATCH 6/9] perf sched replay: Handle the dead halt of sem_wait when create_tasks() fails for any task Yunlong Song
2015-04-08 15:13 ` [tip:perf/core] " tip-bot for Yunlong Song
2015-03-31 13:46 ` [PATCH 7/9] perf sched replay: Fix the EMFILE error caused by the limitation of the maximum open files Yunlong Song
2015-04-07 16:49 ` David Ahern
2015-04-08 15:13 ` [tip:perf/core] " tip-bot for Yunlong Song
2015-03-31 13:46 ` [PATCH 8/9] perf sched replay: Support using -f to override perf.data file ownership Yunlong Song
2015-04-08 15:13 ` [tip:perf/core] " tip-bot for Yunlong Song
2015-09-21 13:54 ` [RFC] Perf: Trigger and dump sample info to perf.data from user space ring buffer Yunlong Song
2015-09-21 15:12 ` Borislav Petkov
2015-03-31 13:46 ` [PATCH 9/9] perf sched replay: Use replay_repeat to calculate the runavg of cpu usage instead of the default value 10 Yunlong Song
2015-04-08 15:13 ` [tip:perf/core] " tip-bot for Yunlong Song
2015-04-07 3:20 ` [PATCH 0/9] perf sched replay: Make some improvements and fixes Yunlong Song
2015-04-07 13:53 ` Arnaldo Carvalho de Melo
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