57 lines
1.4 KiB
Diff
57 lines
1.4 KiB
Diff
From ff75e35508183b5ed39d50122c71293e8e65a86f Mon Sep 17 00:00:00 2001
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From: Zhengjun Xing <zhengjun.xing@linux.intel.com>
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Date: Mon, 31 Oct 2022 15:25:04 +0800
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Subject: [PATCH 03/15] Update README
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Update README, add "check" for build Build Dependencies, add tips
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for running NumaTOP.
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Signed-off-by: Zhengjun Xing <zhengjun.xing@linux.intel.com>
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---
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README.md | 24 +++++++++++++++++++++++-
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1 file changed, 23 insertions(+), 1 deletion(-)
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diff --git a/README.md b/README.md
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index 6910c78..d16a486 100644
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--- a/README.md
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+++ b/README.md
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@@ -12,12 +12,34 @@ the `mgen` program for help information.
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## Build Dependencies
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-NumaTOP requires following libraries:
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+NumaTOP requires following libraries or packages:
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* numactl-devel or libnuma-dev(el)
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* libncurses
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* libpthread
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+* check
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+
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+## Run NumaTOP
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+
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+NumaTOP requires running as root.
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+ # ./numatop
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+
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+In many systems, the default max open files are 1024, for platforms (like SPR)
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+that have more CPUs, they require the system with the max open files should
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+bigger than 1024, otherwise, the error can be "Fail to setup perf":
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+
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+ # ulimit -n
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+ 1024 <------the max open files are 1024
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+ # ./numatop
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+ NumaTOP is starting ...
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+ Fail to setup perf (probably permission denied)!
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+
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+Need to enlarge the max open files:
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+
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+ # ulimit -n 8192
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+ # ulimit -n
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+ 8192 <------now the max open files are 8192
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## Supported Kernels
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--
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2.31.1
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