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7b2fa44de5
Add TCP+sockmap-based benchmark. Since sockmap's own update and delete operations are generally less critical, the performance of the fast forwarding framework built upon it is the key aspect. Also with cgset/cgexec, we can observe the behavior of sockmap under memory pressure. The benchmark can be run with: ''' ./bench sockmap -c 2 -p 1 -a --rx-verdict-ingress ''' In the future, we plan to move socket_helpers.h out of the prog_tests directory to make it accessible for the benchmark. This will enable better support for various socket types. Signed-off-by: Jiayuan Chen <jiayuan.chen@linux.dev> Link: https://lore.kernel.org/r/20250407142234.47591-5-jiayuan.chen@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
66 lines
1.3 KiB
C
66 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include <linux/bpf.h>
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#include <bpf/bpf_helpers.h>
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#include <bpf/bpf_endian.h>
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long process_byte = 0;
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int verdict_dir = 0;
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int dropped = 0;
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int pkt_size = 0;
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struct {
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__uint(type, BPF_MAP_TYPE_SOCKMAP);
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__uint(max_entries, 20);
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__type(key, int);
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__type(value, int);
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} sock_map_rx SEC(".maps");
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struct {
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__uint(type, BPF_MAP_TYPE_SOCKMAP);
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__uint(max_entries, 20);
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__type(key, int);
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__type(value, int);
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} sock_map_tx SEC(".maps");
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SEC("sk_skb/stream_parser")
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int prog_skb_parser(struct __sk_buff *skb)
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{
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return pkt_size;
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}
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SEC("sk_skb/stream_verdict")
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int prog_skb_verdict(struct __sk_buff *skb)
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{
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int one = 1;
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int ret = bpf_sk_redirect_map(skb, &sock_map_rx, one, verdict_dir);
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if (ret == SK_DROP)
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dropped++;
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__sync_fetch_and_add(&process_byte, skb->len);
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return ret;
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}
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SEC("sk_skb/stream_verdict")
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int prog_skb_pass(struct __sk_buff *skb)
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{
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__sync_fetch_and_add(&process_byte, skb->len);
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return SK_PASS;
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}
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SEC("sk_msg")
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int prog_skmsg_verdict(struct sk_msg_md *msg)
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{
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int one = 1;
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__sync_fetch_and_add(&process_byte, msg->size);
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return bpf_msg_redirect_map(msg, &sock_map_tx, one, verdict_dir);
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}
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SEC("sk_msg")
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int prog_skmsg_pass(struct sk_msg_md *msg)
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{
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__sync_fetch_and_add(&process_byte, msg->size);
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return SK_PASS;
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}
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char _license[] SEC("license") = "GPL";
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