add bench

Makefile

@@ -1,12 +1,12 @@
 CC = 9c
 LD = 9l
-CFLAGS = -Wall -Wextra -O2
+CFLAGS = -Wall -Wextra -O2 -g
 PROG = strans
 
 SRCS = $(wildcard *.c)
 OBJS = $(SRCS:.c=.o)
 
-all: $(PROG)
+all: $(PROG) xim bench 
 
 $(PROG): $(OBJS)
 	$(LD) -o $@ $(OBJS) -lthread -lString -lbio -lxcb -lm
@@ -15,5 +15,13 @@ $(OBJS): dat.h fn.h ipc.h
 
 clean:
 	rm -f $(OBJS) $(PROG)
+	make -C xim/ clean
+	make -C bench/ clean
 
-.PHONY: all clean
+xim:
+	make -C xim/
+
+bench:
+	make -C bench/
+
+.PHONY: all clean xim bench

bench.sh

@@ -0,0 +1,23 @@
+#!/bin/sh
+
+pkill strans
+pkill strans-xim
+sleep 1
+
+./strans map font &
+sleep 1
+
+# warm up glyph cache
+./bench/bench bench/bench.keys 100
+echo "cache warmed up"
+
+STRANS_PID=$(pgrep -x strans)
+perf record -g -o bench/perf.data -p "$STRANS_PID" &
+PERF_PID=$!
+sleep 1
+
+./bench/bench bench/bench.keys 100
+
+kill -INT $PERF_PID
+wait $PERF_PID 2>/dev/null
+pkill strans

bench/Makefile

@@ -0,0 +1,8 @@
+CC = cc
+CFLAGS = -Wall -O2
+
+bench: main.c
+	$(CC) $(CFLAGS) -o $@ main.c
+
+clean:
+	rm -f bench

bench/bench.keys

@@ -0,0 +1,30 @@
+^ntoukyounotenki^Ryoidesu^R
+konpyuutanopuroguramu^B^B^Bgramu^R
+nihongowobenkyoushiteimasu^R
+sakuranoshanohana^B^B^B^Bhanagasaiteiru^R
+kaigi^Ekyounokaigi^R
+ashitahaiitenkininarudeshou^R
+^sdkssudgktpdy^Rgksrmfekfqnxm^R
+vmfhrrh^Btprtmxm^Rdufrlavldml^R
+dmlrlwkekfwprtm^R
+gksrnl^B^B^Bdlfp^R
+answkd^Eanswkd^R
+qkrtlwkf^B^B^Bwkfgkf^R
+^thello world^R
+the quick brown fox jumps over the lazy dog^R
+programming is fun^R
+^vVietNam^Rxinchaobancokhoekhong^R
+toidilambaitap^B^B^Bbaitap^R
+hoctiengviet^R
+^nkaishanitsuutomeshiteimasu^R
+tanaboraguukoudesu^B^B^B^B^Bkoudesu^R
+^srhksrnrdlTkfgkwl^R
+answkddkssud^B^Bdkssud^R
+wnsdydgktpdy^R
+^vtoidenlopcuahang^R
+motngaymoiconduong^R
+^thigh performance input method^R
+^nnyuuryokuhouhou^R
+tesutonosuuretsu^R
+^sxkfldzmsdml^R
+qhfmfjxm^R

bench/main.c

@@ -0,0 +1,168 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <time.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+
+enum {
+	Kback	= 0xf008,
+	Kret	= 0xf00d,
+	Kesc	= 0xf01b,
+	Mctrl	= 1<<2,
+};
+
+typedef struct Key Key;
+struct Key {
+	int	k;
+	int	mod;
+};
+
+static Key *keys;
+static int nkeys;
+static int fd;
+
+static void
+die(char *msg)
+{
+	perror(msg);
+	exit(1);
+}
+
+static void
+addkey(int k, int mod)
+{
+	static int cap;
+
+	if(nkeys >= cap){
+		cap = cap ? cap * 2 : 256;
+		keys = realloc(keys, cap * sizeof(Key));
+		if(!keys)
+			die("realloc");
+	}
+	keys[nkeys].k = k;
+	keys[nkeys].mod = mod;
+	nkeys++;
+}
+
+static void
+loadkeys(char *file)
+{
+	FILE *f;
+	int c;
+
+	f = fopen(file, "r");
+	if(!f)
+		die(file);
+	while((c = fgetc(f)) != EOF){
+		if(c == '\n' || c == '\r')
+			continue;
+		if(c != '^'){
+			addkey(c, 0);
+			continue;
+		}
+		c = fgetc(f);
+		if(c == EOF)
+			break;
+		switch(c){
+		case 'B':
+			addkey(Kback, 0);
+			break;
+		case 'R':
+			addkey(Kret, 0);
+			break;
+		case 'E':
+			addkey(Kesc, 0);
+			break;
+		default:
+			addkey(c, Mctrl);
+			break;
+		}
+	}
+	fclose(f);
+}
+
+static void
+dial(void)
+{
+	struct sockaddr_un addr;
+
+	fd = socket(AF_UNIX, SOCK_STREAM, 0);
+	if(fd < 0)
+		die("socket");
+	memset(&addr, 0, sizeof(addr));
+	addr.sun_family = AF_UNIX;
+	snprintf(addr.sun_path, sizeof(addr.sun_path),
+		"/tmp/strans.%d", getuid());
+	if(connect(fd, (struct sockaddr*)&addr, sizeof(addr)) < 0)
+		die("connect");
+}
+
+static void
+sendkey(int key, int mod)
+{
+	unsigned char req[4];
+
+	req[0] = 0;
+	req[1] = mod;
+	req[2] = key & 0xff;
+	req[3] = (key >> 8) & 0xff;
+	if(write(fd, req, 4) != 4)
+		die("write");
+}
+
+static int
+readresp(void)
+{
+	unsigned char buf[256];
+	int n;
+
+	if(read(fd, buf, 2) != 2)
+		return -1;
+	n = buf[1];
+	if(n > 0 && read(fd, buf + 2, n) != n)
+		return -1;
+	return 0;
+}
+
+static double
+now(void)
+{
+	struct timespec ts;
+
+	clock_gettime(CLOCK_MONOTONIC, &ts);
+	return ts.tv_sec + ts.tv_nsec * 1e-9;
+}
+
+int
+main(int argc, char **argv)
+{
+	int i, j, niter;
+	double t0, t1, dt;
+
+	if(argc < 2){
+		fprintf(stderr, "usage: bench file [niter]\n");
+		exit(1);
+	}
+
+	loadkeys(argv[1]);
+	niter = argc > 2 ? atoi(argv[2]) : 1000;
+	dial();
+	t0 = now();
+	for(i = 0; i < niter; i++)
+		for(j = 0; j < nkeys; j++){
+			sendkey(keys[j].k, keys[j].mod);
+			if(readresp() < 0){
+				fprintf(stderr, "failed at iter %d key %d\n", i, j);
+				exit(1);
+			}
+		}
+	t1 = now();
+	dt = t1 - t0;
+	printf("%d iters x %d keys = %d keys\n", niter, nkeys, niter * nkeys);
+	printf("%.3f ms total, %.3f us/key, %.3f us/iter\n",
+		dt * 1000, dt * 1e6 / (niter * nkeys), dt * 1e6 / niter);
+	close(fd);
+	return 0;
+}