diff --git a/.gitignore b/.gitignore
index 9ca8a2b..fe123fb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,6 +2,8 @@
 *.txt
 *.sam
 *.log
+*.fa
+dataset/
 bwa
 test
 test64
diff --git a/bwamem.c b/bwamem.c
index 2bebd93..ab32366 100644
--- a/bwamem.c
+++ b/bwamem.c
@@ -1482,7 +1482,23 @@ static void mem_collect_intv_batch(const mem_opt_t *opt, const FMTIndex *fmt, in
 #endif
 
 #ifdef FILTER_FULL_MATCH
-	if (max_seed_len == len - start_N_num) goto collect_intv_end;
+	if (max_seed_len == len - start_N_num) {
+		
+#ifdef DEBUG_OUTPUT
+		if (start_N_num == 0) {
+			for (i = 0; i < len; ++i)
+				fprintf(gfp1, "%c", "ACGT"[seq[i]]);
+			fprintf(gfp1, "\n");
+#ifdef SHOW_DATA_PERF
+			gdat[2]++;
+			if (gdat[2] % 100 == 0) {
+				fprintf(stderr, "reads num: %ld\n", gdat[2]);
+			}
+#endif
+		}
+#endif
+		goto collect_intv_end;
+	}
 #endif
 
 	// 2. second pass: find MEMs inside a long SMEM
diff --git a/fastmap.c b/fastmap.c
index 6609a1f..af5ce14 100644
--- a/fastmap.c
+++ b/fastmap.c
@@ -92,7 +92,8 @@ int64_t gdat[100];
 #endif
 
 #ifdef DEBUG_OUTPUT
-	FILE * gfp1, *gfp2, *gfp3;
+FILE * gfp1, *gfp2, *gfp3, *gfp4;
+FILE *gfq[4], *gft[4], *gfi[4];
 #endif
 
 extern unsigned char nst_nt4_table[256];
@@ -414,6 +415,18 @@ int main_mem(int argc, char *argv[])
 	gfp1 = fopen("./fp1.txt", "w");
 	gfp2 = fopen("./fp2.txt", "w");
 	gfp3 = fopen("./fp3.txt", "w");
+	gfp4 = fopen("./fp4.txt", "w");
+	char fnbuf[1024];
+	int ii;
+	for (ii = 0; ii < 4; ++ii)
+	{
+		sprintf(fnbuf, "./ext_out/q_%d.fa", ii);
+		gfq[ii] = fopen(fnbuf, "w");
+		sprintf(fnbuf, "./ext_out/t_%d.fa", ii);
+		gft[ii] = fopen(fnbuf, "w");
+		sprintf(fnbuf, "./ext_out/i_%d.txt", ii);
+		gfi[ii] = fopen(fnbuf, "w");
+	}
 #endif
 
 #ifdef SHOW_PERF
@@ -776,13 +789,15 @@ int main_mem(int argc, char *argv[])
 	fprintf(stderr, "time_process_seq: %0.2lf s\n", (time_work_kernel + time_work_sam) * 1.0 / proc_freq);
 
 	fprintf(stderr, "time_seed_all: %0.2lf (%0.2lf, %0.2lf) s\n", avg_seed_all * 1.0 / proc_freq / opt->n_threads, min_seed_all * 1.0 / proc_freq, max_seed_all * 1.0 / proc_freq);
-	fprintf(stderr, "time_seed_1: %0.2lf s\n", avg_seed_1 * 1.0 / proc_freq / opt->n_threads);
-	fprintf(stderr, "time_seed_2: %0.2lf s\n", avg_seed_2 * 1.0 / proc_freq / opt->n_threads);
-	fprintf(stderr, "time_seed_3: %0.2lf s\n", avg_seed_3 * 1.0 / proc_freq / opt->n_threads);
 	fprintf(stderr, "time_sa: %0.2lf s\n", avg_sa * 1.0 / proc_freq / opt->n_threads);
 	fprintf(stderr, "time_chain: %0.2lf s\n", avg_chain * 1.0 / proc_freq / opt->n_threads);
 
 	fprintf(stderr, "time_bsw_all: %0.2lf (%0.2lf, %0.2lf) s\n", avg_bsw_all * 1.0 / proc_freq / opt->n_threads, min_bsw_all * 1.0 / proc_freq, max_bsw_all * 1.0 / proc_freq);
+	fprintf(stderr, "\n");
+	fprintf(stderr, "time_seed_1: %0.2lf s\n", avg_seed_1 * 1.0 / proc_freq / opt->n_threads);
+	fprintf(stderr, "time_seed_2: %0.2lf s\n", avg_seed_2 * 1.0 / proc_freq / opt->n_threads);
+	fprintf(stderr, "time_seed_3: %0.2lf s\n", avg_seed_3 * 1.0 / proc_freq / opt->n_threads);
+	fprintf(stderr, "time_seed_chain: %0.2lf s\n", (avg_seed_all + avg_chain) * 1.0 / proc_freq / opt->n_threads);
 	fprintf(stderr, "time_bsw: %0.2lf s\n", avg_bsw * 1.0 / proc_freq / opt->n_threads);
 	fprintf(stderr, "\n");
 
@@ -798,6 +813,13 @@ int main_mem(int argc, char *argv[])
 	fclose(gfp1);
 	fclose(gfp2);
 	fclose(gfp3);
+	fclose(gfp4);
+	for (ii = 0; ii < 4; ++ii)
+	{
+		fclose(gfq[ii]);
+		fclose(gft[ii]);
+		fclose(gfi[ii]);
+	}
 #endif
 
 	return 0;
diff --git a/ksw_extend2_avx2.c b/ksw_extend2_avx2.c
index c1b0ebe..7c3c1ca 100644
--- a/ksw_extend2_avx2.c
+++ b/ksw_extend2_avx2.c
@@ -6,8 +6,9 @@
 #include <immintrin.h>
 #include <emmintrin.h>
 
-#ifdef SHOW_PERF
+#ifdef DEBUG_OUTPUT
 extern FILE *gfp1, *gfp2, *gfp3;
+extern FILE *gfq[4], *gft[4], *gfi[4];
 #endif
 
 #define NO_VAL -1
@@ -172,6 +173,25 @@ static const uint16_t h_vec_int_mask[SIMD_WIDTH][SIMD_WIDTH] = {
 	tmp = fA1; fA1 = fA2; fA2 = tmp; \
 	tmp = mA1; mA1 = mA2; mA2 = tmp;
 
+void write_query_target_sequence(int qlen, const uint8_t *query, int tlen, const uint8_t *target, int h0, int fnum)
+{
+	// 写到三个文件里，query.fa，target.fa，每行一个序列，info.txt，包含前缀得分h0，和长度信息qlen，tlen
+	FILE *query_f = gfq[fnum], 
+	*target_f = gft[fnum],
+	*info_f = gfi[fnum];
+	const char seq_map[5] = {'A', 'C', 'G', 'T', 'N'};
+	int i;
+	// 处理query
+	for (i = 0; i < qlen; ++i)
+		fprintf(query_f, "%c", seq_map[query[i]]);
+	fprintf(query_f, "\n");
+	// 处理target
+	for (i = 0; i < tlen; ++i)
+		fprintf(target_f, "%c", seq_map[target[i]]);
+	fprintf(target_f, "\n");
+	// 处理其他信息
+	fprintf(info_f, "%-8d%-8d%-8d\n", qlen, tlen, h0);
+}
 
 int ksw_extend2_avx2(int qlen, // query length  待匹配段碱基的query长度
 		const uint8_t *query, // read碱基序列
@@ -201,6 +221,15 @@ int ksw_extend2_avx2(int qlen, // query length  待匹配段碱基的query长度
 
 #ifdef DEBUG_OUTPUT
 	//fprintf(gfp1, "%d\n", qlen);
+	if (qlen <= 30) {
+		write_query_target_sequence(qlen, query, tlen, target, h0, 0);
+	} else if (qlen < 60) {
+		write_query_target_sequence(qlen, query, tlen, target, h0, 1);
+	} else if (qlen < 90) {
+		write_query_target_sequence(qlen, query, tlen, target, h0, 2);
+	} else {
+		write_query_target_sequence(qlen, query, tlen, target, h0, 3);
+	}
 #endif
 
 	if (qlen * a + h0 < 255) return ksw_extend2_avx2_u8(qlen, query, tlen, target, is_left, m, mat, o_del, e_del, o_ins, e_ins, a, b, w, end_bonus, zdrop, h0, _qle, _tle, _gtle, _gscore, _max_off, buf);
diff --git a/run.sh b/run.sh
index 64ce110..038603d 100755
--- a/run.sh
+++ b/run.sh
@@ -3,12 +3,14 @@ thread=1
 #n_r2=~/data/fastq/dataset/na12878_wgs_150/bn2.fq
 #n_r1=~/data/fastq/dataset/na12878_wes_144/SRR25735653_1.fastq
 #n_r2=~/data/fastq/dataset/na12878_wes_144/SRR25735653_2.fastq
-#n_r1=~/data/fastq/dataset/na12878_wgs_150/n1.fq
-#n_r2=~/data/fastq/dataset/na12878_wgs_150/n2.fq
+#n_r1=~/data/fastq/dataset/na12878_wgs_150/s_1.fq
+#n_r2=~/data/fastq/dataset/na12878_wgs_150/s_2.fq
 #n_r1=~/data/fastq/dataset/na12878_wgs_101/na_1.fq
 #n_r2=~/data/fastq/dataset/na12878_wgs_101/na_2.fq
-n_r1=~/data/fastq/dataset/zy_wes/sn1.fq
-n_r2=~/data/fastq/dataset/zy_wes/sn2.fq
+n_r1=~/data/fastq/dataset/zy_wes/s_1.fq
+n_r2=~/data/fastq/dataset/zy_wes/s_2.fq
+#n_r1=~/data/fastq/dataset/zy_wes/bloodgDNA_r1.fastq
+#n_r2=~/data/fastq/dataset/zy_wes/bloodgDNA_r2.fastq
 
 
 #n_r1=~/data/fastq/zy/wgs/n1.fq
@@ -54,12 +56,13 @@ n_r2=~/data/fastq/dataset/zy_wes/sn2.fq
 #n_r2=~/fastq/diff_r2.fq
 #n_r1=~/fastq/d_r1.fq
 #n_r2=~/fastq/d_r2.fq
-reference=~/data/reference/human_g1k_v37_decoy.fasta
+reference=~/reference/human_g1k_v37_decoy.fasta
+#reference=~/data/reference/human_g1k_v37_decoy.fasta
 #out=./all.sam
 #out=./sn.sam
 #out=./ssn-x1.sam
-out=./out.sam
-#out=/dev/null
+#out=./out.sam
+out=/dev/null
 #out=./na12878.sam
 #time ./bwa mem -t 12 -M -R @RG\\tID:normal\\tSM:normal\\tPL:illumina\\tLB:normal\\tPG:bwa \
 #    /home/zzh/data/reference/human_g1k_v37_decoy.fasta \
diff --git a/utils.h b/utils.h
index 1653f9b..621e9ee 100644
--- a/utils.h
+++ b/utils.h
@@ -31,7 +31,7 @@
 #include <stdio.h>
 #include <zlib.h>
 
-#define USE_RDTSC 0
+#define USE_RDTSC 1
 
 #ifdef SHOW_PERF
 extern uint64_t time_process_data, time_read, time_write, time_compute,
@@ -48,7 +48,8 @@ extern int64_t gdat[100];
 #endif
 
 #ifdef DEBUG_OUTPUT
-extern FILE *gfp1, *gfp2, *gfp3;
+extern FILE *gfp1, *gfp2, *gfp3, *gfp4;
+extern FILE *gfq[4], *gft[4], *gfi[4];
 #endif
 
 #undef MAX