diff --git a/scripts/histo.py b/scripts/histo.py
index b1fdd59..f5d4ecd 100644
--- a/scripts/histo.py
+++ b/scripts/histo.py
@@ -10,48 +10,49 @@ import json
 import getopt
 import math
 import concurrent.futures as CF
+import libpar as par
 
-num_bins = 1000
+num_bins = 100
 extra_pct = []
 
-def saveplot(files, data):
+def saveplot(fp : str, data : [], title : str):
     plt.hist(data, num_bins)
-    plt.xlabel("Latency")
+    plt.xlabel("Delay")
+    plt.title(title)
     plt.ylabel("Frequency")
-    plt.title(os.path.basename(files))
+    plt.title(os.path.basename(fp))
     f = plt.gcf()
     f.set_size_inches(11.69, 8.27)
-    f.savefig(files + ".png", dpi=160)
+    f.savefig(fp + "_" + title + "_" + ".png", dpi=160)
     plt.clf()
-    print("Generated - " + files + ".png")
-
-def output_extra_percentile(data):
-    a = np.array(data)
-    for pct in extra_pct:
-        p = np.percentile(a, pct)
-        print(str(pct) + "th: " + str(p))
-
-def sanitize(data):
-    ret = []
-    a = np.array(data)
-    p99 = np.percentile(a, 99)
-    for i in data:
-        if i <= p99:
-            ret.append(i)
-    return ret
-
+    print("Generated - " + fp + "_" + title + "_" + ".png")
 
 executor = CF.ProcessPoolExecutor(max_workers=int(os.cpu_count()))
 
 def process_file(each_dir):
     try:
         print("Processing " + each_dir + " ...")
-        data = memparse.parse_mut_sample(each_dir)[1]
-        output_extra_percentile(data)   
-        sdata = sanitize(data)       
-        saveplot(each_dir, sdata)
-    except:
-        None
+        with open(each_dir, 'r') as f:
+            parser = par.khat_parser()
+            parser.parse(f.read())
+
+        sh = []
+        ss = []
+        ch = []
+        cs = []
+        for pt in parser.datapt:
+            sh.append(pt.s_htx - pt.s_hrx)
+            ss.append(pt.s_stx - pt.s_srx)
+            ch.append(pt.c_hrx - pt.c_htx)
+            cs.append(pt.c_srx - pt.c_stx)
+
+        saveplot(each_dir, sh, "server_hw_delay")
+        saveplot(each_dir, ss, "server_sw_delay")
+        saveplot(each_dir, ch, "client_hw_delay")
+        saveplot(each_dir, cs, "client_sw_delay")
+
+    except Exception:
+        print("Unexpected error:", sys.exc_info())
 
 def process_dir(rootdir):
     for subdir in os.listdir(rootdir):