Messages in this thread | | | From | Qiuxu Zhuo <> | Subject | Re: [patch 00/53] x86/topology: The final installment | Date | Thu, 10 Aug 2023 00:12:19 +0800 |
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Hi Thomas,
> From: Thomas Gleixner <tglx@linutronix.de> > ... > Subject: [patch 00/53] x86/topology: The final installment > ... > > The current series applies on top of > > git://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git topo-cpuid-v3 > > and is available from git here: > > git://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git topo-full-v1
Test Machine ------------ I tested the 'topo-full-v1' branch on a Sapphire Rapids server with 2 sockets, each containing 48 cores, resulting in a total of 192 threads.
Test Results ------------ The following test results (same result either w/ or w/o [1]) show that this branch worked well on this server. Based on the test results, Tested-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
[1] https://lore.kernel.org/all/20230808221039.GH212435@hirez.programming.kicks-ass.net/
Logs (hyper-thread enabled) --------------------------- 1.1 dmesg | grep "CPU topo" :
CPU topo: Max. logical packages: 2 CPU topo: Max. logical dies: 2 CPU topo: Max. dies per package: 1 CPU topo: Max. threads per core: 2 CPU topo: Num. cores per package: 48 CPU topo: Num. threads per package: 96 CPU topo: Allowing 192 present CPUs plus 0 hotplug CPUs CPU topo: Thread : 192 CPU topo: Core : 96 CPU topo: Module : 2 CPU topo: Tile : 2 CPU topo: Die : 2 CPU topo: Package : 2
1.2 cat /sys/kernel/debug/x86/topo/domains :
domain: Thread shift: 1 dom_size: 2 max_threads: 2 domain: Core shift: 7 dom_size: 64 max_threads: 128 domain: Module shift: 7 dom_size: 1 max_threads: 128 domain: Tile shift: 7 dom_size: 1 max_threads: 128 domain: Die shift: 7 dom_size: 1 max_threads: 128 domain: Package shift: 7 dom_size: 1 max_threads: 128
1.3 <1st socket, 1st core, primary thread> cat /sys/kernel/debug/x86/topo/cpus/0 online: 1 initial_apicid: 0 apicid: 0 pkg_id: 0 die_id: 0 cu_id: 255 core_id: 0 logical_pkg_id: 0 logical_die_id: 0 llc_id: 0 l2c_id: 0 amd_node_id: 0 amd_nodes_per_pkg: 0 num_threads: 96 num_cores: 48 max_dies_per_pkg: 1 max_threads_per_core:2
<1st socket, last core, primary thread> cat /sys/kernel/debug/x86/topo/cpus/47 online: 1 initial_apicid: 5e apicid: 5e pkg_id: 0 die_id: 0 cu_id: 255 core_id: 47 logical_pkg_id: 0 logical_die_id: 0 llc_id: 0 l2c_id: 94 amd_node_id: 0 amd_nodes_per_pkg: 0 num_threads: 96 num_cores: 48 max_dies_per_pkg: 1 max_threads_per_core:2 <2nd socket, 1st core, primary thread> cat /sys/kernel/debug/x86/topo/cpus/48 online: 1 initial_apicid: 80 apicid: 80 pkg_id: 1 die_id: 1 cu_id: 255 core_id: 0 logical_pkg_id: 1 logical_die_id: 1 llc_id: 128 l2c_id: 128 amd_node_id: 0 amd_nodes_per_pkg: 0 num_threads: 96 num_cores: 48 max_dies_per_pkg: 1 max_threads_per_core:2 <2nd socket, last core, primary thread> cat /sys/kernel/debug/x86/topo/cpus/95 online: 1 initial_apicid: de apicid: de pkg_id: 1 die_id: 1 cu_id: 255 core_id: 47 logical_pkg_id: 1 logical_die_id: 1 llc_id: 128 l2c_id: 222 amd_node_id: 0 amd_nodes_per_pkg: 0 num_threads: 96 num_cores: 48 max_dies_per_pkg: 1 max_threads_per_core:2
<1st socket, 1st core, secondary thread> cat /sys/kernel/debug/x86/topo/cpus/96 online: 1 initial_apicid: 1 apicid: 1 pkg_id: 0 die_id: 0 cu_id: 255 core_id: 0 logical_pkg_id: 0 logical_die_id: 0 llc_id: 0 l2c_id: 0 amd_node_id: 0 amd_nodes_per_pkg: 0 num_threads: 96 num_cores: 48 max_dies_per_pkg: 1 max_threads_per_core:2 <1st socket, last core, secondary thread> cat /sys/kernel/debug/x86/topo/cpus/143 online: 1 initial_apicid: 5f apicid: 5f pkg_id: 0 die_id: 0 cu_id: 255 core_id: 47 logical_pkg_id: 0 logical_die_id: 0 llc_id: 0 l2c_id: 94 amd_node_id: 0 amd_nodes_per_pkg: 0 num_threads: 96 num_cores: 48 max_dies_per_pkg: 1 max_threads_per_core:2
<2nd socket, 1st core, secondary thread> cat /sys/kernel/debug/x86/topo/cpus/144 online: 1 initial_apicid: 81 apicid: 81 pkg_id: 1 die_id: 1 cu_id: 255 core_id: 0 logical_pkg_id: 1 logical_die_id: 1 llc_id: 128 l2c_id: 128 amd_node_id: 0 amd_nodes_per_pkg: 0 num_threads: 96 num_cores: 48 max_dies_per_pkg: 1 max_threads_per_core:2 <2nd socket, last core, secondary thread> cat /sys/kernel/debug/x86/topo/cpus/191 online: 1 initial_apicid: df apicid: df pkg_id: 1 die_id: 1 cu_id: 255 core_id: 47 logical_pkg_id: 1 logical_die_id: 1 llc_id: 128 l2c_id: 222 amd_node_id: 0 amd_nodes_per_pkg: 0 num_threads: 96 num_cores: 48 max_dies_per_pkg: 1 max_threads_per_core:2
Logs (hyper-thread disabled) ---------------------------- 2.1 dmesg | grep "CPU topo" :
CPU topo: Max. logical packages: 2 CPU topo: Max. logical dies: 2 CPU topo: Max. dies per package: 1 CPU topo: Max. threads per core: 1 CPU topo: Num. cores per package: 48 CPU topo: Num. threads per package: 48 CPU topo: Allowing 96 present CPUs plus 0 hotplug CPUs CPU topo: Thread : 96 CPU topo: Core : 96 CPU topo: Module : 2 CPU topo: Tile : 2 CPU topo: Die : 2 CPU topo: Package : 2
2.2 cat /sys/kernel/debug/x86/topo/domains :
domain: Thread shift: 1 dom_size: 2 max_threads: 2 domain: Core shift: 7 dom_size: 64 max_threads: 128 domain: Module shift: 7 dom_size: 1 max_threads: 128 domain: Tile shift: 7 dom_size: 1 max_threads: 128 domain: Die shift: 7 dom_size: 1 max_threads: 128 domain: Package shift: 7 dom_size: 1 max_threads: 128
2.3 <1st socket, 1st core> cat /sys/kernel/debug/x86/topo/cpus/0 online: 1 initial_apicid: 0 apicid: 0 pkg_id: 0 die_id: 0 cu_id: 255 core_id: 0 logical_pkg_id: 0 logical_die_id: 0 llc_id: 0 l2c_id: 0 amd_node_id: 0 amd_nodes_per_pkg: 0 num_threads: 48 num_cores: 48 max_dies_per_pkg: 1 max_threads_per_core:1
<1st socket, last core> cat /sys/kernel/debug/x86/topo/cpus/47 online: 1 initial_apicid: 5e apicid: 5e pkg_id: 0 die_id: 0 cu_id: 255 core_id: 47 logical_pkg_id: 0 logical_die_id: 0 llc_id: 0 l2c_id: 94 amd_node_id: 0 amd_nodes_per_pkg: 0 num_threads: 48 num_cores: 48 max_dies_per_pkg: 1 max_threads_per_core:1
<2nd socket, 1st core> cat /sys/kernel/debug/x86/topo/cpus/48 online: 1 initial_apicid: 80 apicid: 80 pkg_id: 1 die_id: 1 cu_id: 255 core_id: 0 logical_pkg_id: 1 logical_die_id: 1 llc_id: 128 l2c_id: 128 amd_node_id: 0 amd_nodes_per_pkg: 0 num_threads: 48 num_cores: 48 max_dies_per_pkg: 1 max_threads_per_core:1
<2nd socket, last core> cat /sys/kernel/debug/x86/topo/cpus/95 online: 1 initial_apicid: de apicid: de pkg_id: 1 die_id: 1 cu_id: 255 core_id: 47 logical_pkg_id: 1 logical_die_id: 1 llc_id: 128 l2c_id: 222 amd_node_id: 0 amd_nodes_per_pkg: 0 num_threads: 48 num_cores: 48 max_dies_per_pkg: 1 max_threads_per_core:1
-Qiuxu
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