evgeny
38c9f229bc
- u_async.c: process immediate_queue BEFORE epoll_wait in uasync_poll - stcp_link.c: defensive NULL etcp_conn/etcp_link in stcp_link_close - utun_instance.c: move stcp_server_list_destroy_all to Phase J (before ETCP), add deferred drain in both Phase J and L - stcp.h/c: STCP_HS_ENC_CLIENT 6→38, STCP_HS_ENC_SERVER 7→39, exchange ed25519_pubkey in both handshake directions - etcp_connections.c: copy peer_ed25519 from STCP to ETCP_CONN in etcp_link_enter_ready_tcp; guard link->etcp in tcp_link_close_cb - chat_sync.c: fix lk->conn NULL dereference for TCP links - test_stcp.c: update stcp_server_create/stcp_client_connect callsites - tools/chat_tcp_test: change transport udp→tcp
53 lines
1.3 KiB
C
53 lines
1.3 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#define BLOCK_SIZE 10
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static int counts[] = {0, 100, 1000, 10000, 100000};
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static int n_counts = 5;
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static long read_vm_field(const char *field) {
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char path[64], buf[256];
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snprintf(path, sizeof(path), "/proc/%d/status", getpid());
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FILE *f = fopen(path, "r");
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if (!f) return -1;
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long val = -1;
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while (fgets(buf, sizeof(buf), f)) {
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if (strncmp(buf, field, strlen(field)) == 0) {
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sscanf(buf + strlen(field) + 1, "%ld", &val);
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break;
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}
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}
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fclose(f);
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return val;
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}
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static void measure(const char *label) {
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long rss = read_vm_field("VmRSS");
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long data = read_vm_field("VmData");
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long size = read_vm_field("VmSize");
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printf(" %-8s VmRSS=%6ld kB VmData=%6ld kB VmSize=%6ld kB\n", label, rss, data, size);
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}
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int main(void) {
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printf("Block size: %d bytes\n", BLOCK_SIZE);
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for (int c = 0; c < n_counts; c++) {
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int n = counts[c];
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printf("\n--- %d blocks (requested %d bytes) ---\n", n, n * BLOCK_SIZE);
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measure("before");
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void **ptrs = malloc(n * sizeof(void*));
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for (int i = 0; i < n; i++) {
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ptrs[i] = malloc(BLOCK_SIZE);
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memset(ptrs[i], 0, BLOCK_SIZE);
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}
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measure("after ");
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free(ptrs);
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}
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return 0;
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}
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