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feat(cmake): refine cache info getting method
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,43 @@ | ||
| /** | ||
| This program is free software; you can redistribute it and/or modify | ||
| it under the terms of the GNU General Public License, version 2.0, | ||
| as published by the Free Software Foundation. | ||
| This program is also distributed with certain software (including | ||
| but not limited to OpenSSL) that is licensed under separate terms, | ||
| as designated in a particular file or component or in included license | ||
| documentation. The authors of MySQL hereby grant you an additional | ||
| permission to link the program and your derivative works with the | ||
| separately licensed software that they have included with MySQL. | ||
| This program is distributed in the hope that it will be useful, | ||
| but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| GNU General Public License, version 2.0, for more details. | ||
| You should have received a copy of the GNU General Public License | ||
| along with this program; if not, write to the Free Software | ||
| Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | ||
| The fundmental code for imcs. | ||
| Copyright (c) 2023, Shannon Data AI and/or its affiliates. | ||
| */ | ||
|
|
||
| #include <sys/sysctl.h> | ||
| #include <sys/types.h> | ||
| #include <iostream> | ||
|
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| void get_cache_lines_size() { | ||
| size_t cacheline_size = 0; | ||
| size_t len = sizeof(cacheline_size); | ||
|
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| // cache line size | ||
| sysctlbyname("hw.cachelinesize", &cacheline_size, &len, nullptr, 0); | ||
| printf("%u \n", cache_line_size); | ||
| } | ||
|
|
||
| int main() { | ||
| get_cache_lines_size(); | ||
| return 0; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,53 @@ | ||
| /** | ||
| This program is free software; you can redistribute it and/or modify | ||
| it under the terms of the GNU General Public License, version 2.0, | ||
| as published by the Free Software Foundation. | ||
| This program is also distributed with certain software (including | ||
| but not limited to OpenSSL) that is licensed under separate terms, | ||
| as designated in a particular file or component or in included license | ||
| documentation. The authors of MySQL hereby grant you an additional | ||
| permission to link the program and your derivative works with the | ||
| separately licensed software that they have included with MySQL. | ||
| This program is distributed in the hope that it will be useful, | ||
| but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| GNU General Public License, version 2.0, for more details. | ||
| You should have received a copy of the GNU General Public License | ||
| along with this program; if not, write to the Free Software | ||
| Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | ||
| The fundmental code for imcs. to get all level cache size of a cpu. | ||
| Copyright (c) 2023, Shannon Data AI and/or its affiliates. | ||
| */ | ||
|
|
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| // gets intel cpu size of all cache level. | ||
| #include <stdio.h> | ||
| #include <sys/sysctl.h> | ||
| #include <sys/types.h> | ||
|
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| void get_intel_cache_size() { | ||
| size_t l1icache = 0, l1dcache = 0, l2cache = 0, l3cache = 0; | ||
| size_t len = sizeof(l1icache); | ||
|
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| // l1-instr | ||
| sysctlbyname("hw.l1icachesize", &l1icache, &len, NULL, 0); | ||
| // l2-data | ||
| sysctlbyname("hw.l1dcachesize", &l1dcache, &len, NULL, 0); | ||
| // l2 size | ||
| sysctlbyname("hw.l2cachesize", &l2cache, &len, NULL, 0); | ||
| // l3 size | ||
| sysctlbyname("hw.l3cachesize", &l3cache, &len, NULL, 0); | ||
|
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| printf("CACHE_L1=%zu\n", l1dcache / 1024); | ||
| printf("CACHE_L2=%zu\n", l2cache / 1024); | ||
| printf("CACHE_L3=%zu\n", l3cache / 1024); | ||
| } | ||
|
|
||
| int main() { | ||
| get_intel_cache_size(); | ||
| return 0; | ||
| } |