GitMensch

# see https://github.com/gitpod-io/gitpod/issues/8893

sudo apt install -y bison flex libelf-dev libnewt-dev libdw-dev libaudit-dev libiberty-dev libunwind-dev libcap-dev libzstd-dev libnuma-dev libssl-dev python3-dev python3-setuptools binutils-dev gcc-multilib liblzma-dev systemtap-sdt-dev
# you _may_ need asciidoc, too; that's quite a big one
cd /workspace
git clone --depth 1 --filter=blob:none --sparse git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git
cd linux
git sparse-checkout set dir tools scripts
git fetch --depth 1 origin v5.15
make -C tools/perf

daverigby

Step 1 - Gather profile

1. Install debuginfo package (in addition to main RPM/deb)
2. Install linux perf tools:
   • RHEL / CentOS / Amazon Linux: yum install perf.
   • Note: CentOS7 has a pretty old version of perf; which includes some issues decoding backtraces via DWARF. Prefer a newer version if possible. I have a local build of 5.11 for CentOS7 at ~/Documents/linux-perf-5.11-with-separate_debuginfo_unwind_fix
3. Start workload to be measured
4. Record profile
   1. x86-64:

daverigby

1. Install package libstdc++6 (Ubuntu 16.04)
2. Add following to ~/.gdbinit

python
import sys 
sys.path.insert(0, '/usr/share/gcc-9/python')
from libstdcxx.v6.printers import register_libstdcxx_printers
register_libstdcxx_printers (None)
end

bcantrill

From bmc Mon Oct  2 15:12:34 2000
Subject: Undergrad systems curriculum
To: faculty@cs.cornell.edu
Date: Mon, 2 Oct 2000 15:12:34 -0700 (PDT)
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Status: RO

skyscribe

#                                                                                                        
#   STL GDB evaluators/views/utilities - 1.03
#
#   The new GDB commands:                                                         
# 	    are entirely non instrumental                                             
# 	    do not depend on any "inline"(s) - e.g. size(), [], etc
#       are extremely tolerant to debugger settings
#                                                                                 
#   This file should be "included" in .gdbinit as following:
#   source stl-views.gdb or just paste it into your .gdbinit file