diff options
Diffstat (limited to 'samples/bpf/map_perf_test_kern.c')
-rw-r--r-- | samples/bpf/map_perf_test_kern.c | 301 |
1 files changed, 0 insertions, 301 deletions
diff --git a/samples/bpf/map_perf_test_kern.c b/samples/bpf/map_perf_test_kern.c deleted file mode 100644 index 0c7885057ffe..000000000000 --- a/samples/bpf/map_perf_test_kern.c +++ /dev/null @@ -1,301 +0,0 @@ -/* Copyright (c) 2016 Facebook - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of version 2 of the GNU General Public - * License as published by the Free Software Foundation. - */ -#include "vmlinux.h" -#include <errno.h> -#include <linux/version.h> -#include <bpf/bpf_helpers.h> -#include <bpf/bpf_tracing.h> -#include <bpf/bpf_core_read.h> - -#define MAX_ENTRIES 1000 -#define MAX_NR_CPUS 1024 - -struct { - __uint(type, BPF_MAP_TYPE_HASH); - __type(key, u32); - __type(value, long); - __uint(max_entries, MAX_ENTRIES); -} hash_map SEC(".maps"); - -struct { - __uint(type, BPF_MAP_TYPE_LRU_HASH); - __type(key, u32); - __type(value, long); - __uint(max_entries, 10000); -} lru_hash_map SEC(".maps"); - -struct { - __uint(type, BPF_MAP_TYPE_LRU_HASH); - __type(key, u32); - __type(value, long); - __uint(max_entries, 10000); - __uint(map_flags, BPF_F_NO_COMMON_LRU); -} nocommon_lru_hash_map SEC(".maps"); - -struct inner_lru { - __uint(type, BPF_MAP_TYPE_LRU_HASH); - __type(key, u32); - __type(value, long); - __uint(max_entries, MAX_ENTRIES); - __uint(map_flags, BPF_F_NUMA_NODE); - __uint(numa_node, 0); -} inner_lru_hash_map SEC(".maps"); - -struct { - __uint(type, BPF_MAP_TYPE_ARRAY_OF_MAPS); - __uint(max_entries, MAX_NR_CPUS); - __uint(key_size, sizeof(u32)); - __array(values, struct inner_lru); /* use inner_lru as inner map */ -} array_of_lru_hashs SEC(".maps") = { - /* statically initialize the first element */ - .values = { &inner_lru_hash_map }, -}; - -struct { - __uint(type, BPF_MAP_TYPE_PERCPU_HASH); - __uint(key_size, sizeof(u32)); - __uint(value_size, sizeof(long)); - __uint(max_entries, MAX_ENTRIES); -} percpu_hash_map SEC(".maps"); - -struct { - __uint(type, BPF_MAP_TYPE_HASH); - __type(key, u32); - __type(value, long); - __uint(max_entries, MAX_ENTRIES); - __uint(map_flags, BPF_F_NO_PREALLOC); -} hash_map_alloc SEC(".maps"); - -struct { - __uint(type, BPF_MAP_TYPE_PERCPU_HASH); - __uint(key_size, sizeof(u32)); - __uint(value_size, sizeof(long)); - __uint(max_entries, MAX_ENTRIES); - __uint(map_flags, BPF_F_NO_PREALLOC); -} percpu_hash_map_alloc SEC(".maps"); - -struct { - __uint(type, BPF_MAP_TYPE_LPM_TRIE); - __uint(key_size, 8); - __uint(value_size, sizeof(long)); - __uint(max_entries, 10000); - __uint(map_flags, BPF_F_NO_PREALLOC); -} lpm_trie_map_alloc SEC(".maps"); - -struct { - __uint(type, BPF_MAP_TYPE_ARRAY); - __type(key, u32); - __type(value, long); - __uint(max_entries, MAX_ENTRIES); -} array_map SEC(".maps"); - -struct { - __uint(type, BPF_MAP_TYPE_LRU_HASH); - __type(key, u32); - __type(value, long); - __uint(max_entries, MAX_ENTRIES); -} lru_hash_lookup_map SEC(".maps"); - -SEC("ksyscall/getuid") -int stress_hmap(struct pt_regs *ctx) -{ - u32 key = bpf_get_current_pid_tgid(); - long init_val = 1; - long *value; - int i; - - for (i = 0; i < 10; i++) { - bpf_map_update_elem(&hash_map, &key, &init_val, BPF_ANY); - value = bpf_map_lookup_elem(&hash_map, &key); - if (value) - bpf_map_delete_elem(&hash_map, &key); - } - - return 0; -} - -SEC("ksyscall/geteuid") -int stress_percpu_hmap(struct pt_regs *ctx) -{ - u32 key = bpf_get_current_pid_tgid(); - long init_val = 1; - long *value; - int i; - - for (i = 0; i < 10; i++) { - bpf_map_update_elem(&percpu_hash_map, &key, &init_val, BPF_ANY); - value = bpf_map_lookup_elem(&percpu_hash_map, &key); - if (value) - bpf_map_delete_elem(&percpu_hash_map, &key); - } - return 0; -} - -SEC("ksyscall/getgid") -int stress_hmap_alloc(struct pt_regs *ctx) -{ - u32 key = bpf_get_current_pid_tgid(); - long init_val = 1; - long *value; - int i; - - for (i = 0; i < 10; i++) { - bpf_map_update_elem(&hash_map_alloc, &key, &init_val, BPF_ANY); - value = bpf_map_lookup_elem(&hash_map_alloc, &key); - if (value) - bpf_map_delete_elem(&hash_map_alloc, &key); - } - return 0; -} - -SEC("ksyscall/getegid") -int stress_percpu_hmap_alloc(struct pt_regs *ctx) -{ - u32 key = bpf_get_current_pid_tgid(); - long init_val = 1; - long *value; - int i; - - for (i = 0; i < 10; i++) { - bpf_map_update_elem(&percpu_hash_map_alloc, &key, &init_val, BPF_ANY); - value = bpf_map_lookup_elem(&percpu_hash_map_alloc, &key); - if (value) - bpf_map_delete_elem(&percpu_hash_map_alloc, &key); - } - return 0; -} - -SEC("ksyscall/connect") -int stress_lru_hmap_alloc(struct pt_regs *ctx) -{ - struct pt_regs *real_regs = (struct pt_regs *)PT_REGS_PARM1_CORE(ctx); - char fmt[] = "Failed at stress_lru_hmap_alloc. ret:%dn"; - union { - u16 dst6[8]; - struct { - u16 magic0; - u16 magic1; - u16 tcase; - u16 unused16; - u32 unused32; - u32 key; - }; - } test_params; - struct sockaddr_in6 *in6; - u16 test_case; - int addrlen, ret; - long val = 1; - u32 key = 0; - - in6 = (struct sockaddr_in6 *)PT_REGS_PARM2_CORE(real_regs); - addrlen = (int)PT_REGS_PARM3_CORE(real_regs); - - if (addrlen != sizeof(*in6)) - return 0; - - ret = bpf_probe_read_user(test_params.dst6, sizeof(test_params.dst6), - &in6->sin6_addr); - if (ret) - goto done; - - if (test_params.magic0 != 0xdead || - test_params.magic1 != 0xbeef) - return 0; - - test_case = test_params.tcase; - if (test_case != 3) - key = bpf_get_prandom_u32(); - - if (test_case == 0) { - ret = bpf_map_update_elem(&lru_hash_map, &key, &val, BPF_ANY); - } else if (test_case == 1) { - ret = bpf_map_update_elem(&nocommon_lru_hash_map, &key, &val, - BPF_ANY); - } else if (test_case == 2) { - void *nolocal_lru_map; - int cpu = bpf_get_smp_processor_id(); - - nolocal_lru_map = bpf_map_lookup_elem(&array_of_lru_hashs, - &cpu); - if (!nolocal_lru_map) { - ret = -ENOENT; - goto done; - } - - ret = bpf_map_update_elem(nolocal_lru_map, &key, &val, - BPF_ANY); - } else if (test_case == 3) { - u32 i; - - key = test_params.key; - -#pragma clang loop unroll(full) - for (i = 0; i < 32; i++) { - bpf_map_lookup_elem(&lru_hash_lookup_map, &key); - key++; - } - } else { - ret = -EINVAL; - } - -done: - if (ret) - bpf_trace_printk(fmt, sizeof(fmt), ret); - - return 0; -} - -SEC("ksyscall/gettid") -int stress_lpm_trie_map_alloc(struct pt_regs *ctx) -{ - union { - u32 b32[2]; - u8 b8[8]; - } key; - unsigned int i; - - key.b32[0] = 32; - key.b8[4] = 192; - key.b8[5] = 168; - key.b8[6] = 0; - key.b8[7] = 1; - -#pragma clang loop unroll(full) - for (i = 0; i < 32; ++i) - bpf_map_lookup_elem(&lpm_trie_map_alloc, &key); - - return 0; -} - -SEC("ksyscall/getpgid") -int stress_hash_map_lookup(struct pt_regs *ctx) -{ - u32 key = 1, i; - long *value; - -#pragma clang loop unroll(full) - for (i = 0; i < 64; ++i) - value = bpf_map_lookup_elem(&hash_map, &key); - - return 0; -} - -SEC("ksyscall/getppid") -int stress_array_map_lookup(struct pt_regs *ctx) -{ - u32 key = 1, i; - long *value; - -#pragma clang loop unroll(full) - for (i = 0; i < 64; ++i) - value = bpf_map_lookup_elem(&array_map, &key); - - return 0; -} - -char _license[] SEC("license") = "GPL"; -u32 _version SEC("version") = LINUX_VERSION_CODE; |