perf(reader): M29 书架扫描缓存 + 行数多时关圆角容器（回书架 3.4s→0.03s，滚动 52ms→19ms）
真机（0.8.48 / reader 0.1.1 基线，同机同字库 ztest 实测）： - 从阅读页返回书架：3435ms（3259–3531）→ 33ms（24–54）。根因是 shelf_on_enter 无条件 scan_books()：exFAT 全量扫描 434 目录 = 3.1s。改为进程内缓存（首次进入才扫，顶栏 「刷新」强制重扫）；truncated/depth_skipped 提示语义不变（首次扫描时算好并保留）。 行为变化：新进 Books/ 的书、刚读完那本书的「最近阅读置顶」需点一次「刷新」才更新。 - 书架滑动每步（62px，含 widget_draw + flush）：51.9–56.2ms → 19.3–19.9ms。 行数 > 200 时 meow_listview_set_container(0)（扁平行），≤200 行仍用 MD3 圆角卡； 圆角卡走 meow_gfx_fill_round 逐像素 rr_inside（464×54 一张 3.8–6.4ms ×11 行）。 - 首次进书架仍需扫一次（3497ms，含 3157ms 扫描）；595 本全可见、format/folder 分组不变。 另加 test/shelf_bench_ondev.c（真机耗时基准，不进 mpk）与 build_reader.sh 的编译步骤； app.json 0.1.1/2 → 0.1.2/3。未做（按塔砍范围）：字体路径记忆化、首屏只渲染当前页、 自绘行、mtime 失效检测。
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/* test/shelf_bench_ondev.c — 真机耗时基准（不进发行包，不参与 mpk）。
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*
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* 目的：在**同一台设备、同一字库/主题环境**下量 App 的同步耗时，用来给书架缓存 /
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* 行自绘 / 开书路径做前后对比（宿主数字不算数）。
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*
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* 只调 App/SDK 公共入口（与 app.c 的调用顺序一致），不复制任何内部实现：
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* meow_ui_init → 建三页 → push 书架（= 首次进书架，含扫描）
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* → push/pop 阅读页 ×N（= 从阅读页返回书架）
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* → shelf_on_swipe ×N（= 书架滑动，含 widget_draw + flush 上屏）
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* → reader_open + push 阅读页（= 点书开读首屏）、翻页
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*
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* 用法（设备）：shelf_bench_ondev [book1 [book2 ...]]
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* 输出：`BENCH <key> <min>-<max> (avg ...)` 行，ms 为毫秒（设备时钟 10ms 分辨率，
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* 单次量用多轮取样给区间；批量操作用「总时长/次数」给出平均值）。
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*/
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#include "reader_internal.h"
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#include "app/shelf_model.h"
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#include "meow_ui_internal.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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static uint64_t now_ms(void) { return meow_ui_time_ms(); }
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static void bench_scan(void)
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{
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static shelf_book books[SHELF_MAX_BOOKS];
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shelf_scan_report rep;
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uint64_t t0 = now_ms();
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int n = shelf_scan_books(READER_SD_ROOT "/Books", books, SHELF_MAX_BOOKS, NULL, &rep);
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uint64_t t1 = now_ms();
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printf("BENCH scan_ms %llu (n=%d truncated=%d depth_skipped=%d root_missing=%d)\n",
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(unsigned long long)(t1 - t0), n, rep.truncated, rep.depth_skipped, rep.root_missing);
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fflush(stdout);
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}
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int main(int argc, char **argv)
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{
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meow_ui_opts o = { 480, 720 };
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if (meow_ui_init(&o) != 0) { printf("BENCH init_fail\n"); return 1; }
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meow_theme_add_listener(NULL);
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bench_scan(); /* 纯扫描基线（不建 UI） */
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shelf_view_create();
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reader_view_create();
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settings_view_create();
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/* ① 首次进书架（新进程：含全量扫描 + 建控件 + 首帧上屏） */
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uint64_t t0 = now_ms();
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meow_view_page_push(ACT_SHELF);
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uint64_t t1 = now_ms();
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printf("BENCH shelf_first_enter_ms %llu\n", (unsigned long long)(t1 - t0));
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/* ② 从阅读页返回书架：push 阅读页（不等书）→ pop 回书架；连做 5 次给区间 */
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unsigned long long rmin = 0, rmax = 0, rsum = 0;
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for (int i = 0; i < 5; i++) {
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meow_view_page_push(ACT_READER);
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uint64_t a = now_ms();
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meow_view_page_pop();
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uint64_t b = now_ms();
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uint64_t d = b - a;
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if (i == 0 || d < rmin) rmin = d;
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if (i == 0 || d > rmax) rmax = d;
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rsum += d;
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}
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printf("BENCH shelf_return_ms %llu-%llu (avg %llu)\n",
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rmin, rmax, rsum / 5);
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/* ③ 书架滑动：每步 62px（与 survey 同口径：scroll 62 + widget_draw + flush） */
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for (int batch = 0; batch < 3; batch++) {
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uint64_t a = now_ms();
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for (int i = 0; i < 30; i++) shelf_on_swipe(MEOW_SWIPE_UP, 0, 62);
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uint64_t b = now_ms();
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printf("BENCH shelf_scroll_step_ms %.1f (batch %d: 30 steps %llu ms)\n",
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(double)(b - a) / 30.0, batch, (unsigned long long)(b - a));
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for (int i = 0; i < 30; i++) shelf_on_swipe(MEOW_SWIPE_DOWN, 0, 62); /* 回到顶部 */
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}
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fflush(stdout);
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/* ④ 开书首屏 / 翻页（argv 给书路径；不给则跳过） */
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for (int i = 1; i < argc; i++) {
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uint64_t a = now_ms();
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int rc = reader_open(argv[i]);
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uint64_t b = now_ms();
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if (rc != 0) { printf("BENCH open_fail %s\n", argv[i]); continue; }
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meow_view_page_push(ACT_READER);
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uint64_t c = now_ms();
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printf("BENCH open_ms %llu (reader_open %llu + page_push %llu) %s\n",
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(unsigned long long)(c - a), (unsigned long long)(b - a),
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(unsigned long long)(c - b), argv[i]);
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/* 翻页：reader_page_key 置 pending → reader_on_tick 消费（同步段=turn+refill+redraw）
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* 轮数由 MEOW_BENCH_TURNS 控制（0=不翻页 → 用于「开书不翻页进度文件不变」回归）。 */
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const char *et = getenv("MEOW_BENCH_TURNS");
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int nturns = et && et[0] ? atoi(et) : 4;
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unsigned long long tmin = 0, tmax = 0, tsum = 0;
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for (int p = 0; p < nturns; p++) {
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reader_page_key(1);
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uint64_t x = now_ms();
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reader_on_tick(now_ms());
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uint64_t y = now_ms();
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uint64_t d = y - x;
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if (p == 0 || d < tmin) tmin = d;
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if (p == 0 || d > tmax) tmax = d;
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tsum += d;
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}
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printf("BENCH turn_ms %llu-%llu (avg %llu) %s\n", tmin, tmax, nturns ? tsum / nturns : 0, argv[i]);
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meow_view_page_pop();
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fflush(stdout);
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}
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meow_ui_shutdown();
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return 0;
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}
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