diff --git a/apps/debug_menu.c b/apps/debug_menu.c
index ca8b056c99..6caae2d7e0 100644
--- a/apps/debug_menu.c
+++ b/apps/debug_menu.c
@@ -1280,11 +1280,7 @@ bool dbg_cpufreq(void)
         snprintf(buf, sizeof(buf), "Frequency: %ld", FREQ);
         lcd_puts(0, line++, buf);
 
-#ifdef CPU_BOOST_TRACKING
-        snprintf(buf, sizeof(buf), "boost_counter: %d %s", get_cpu_boost_counter(), get_cpu_boost_tracker());
-#else
         snprintf(buf, sizeof(buf), "boost_counter: %d", get_cpu_boost_counter());
-#endif
         lcd_puts(0, line++, buf);
 
         lcd_update();
@@ -1293,16 +1289,16 @@ bool dbg_cpufreq(void)
         switch(button)
         {
             case ACTION_STD_PREV:
-                cpu_boost_id(true, CPUBOOSTID_DEBUGMENU_MANUAL);
+                cpu_boost(true);
                 break;
 
             case ACTION_STD_NEXT:
-                cpu_boost_id(false, CPUBOOSTID_DEBUGMENU_MANUAL);
+                cpu_boost(false);
                 break;
 
             case ACTION_STD_OK:
                 while (get_cpu_boost_counter() > 0)
-                    cpu_boost_id(false, CPUBOOSTID_DEBUGMENU_MANUAL);
+                    cpu_boost(false);
                 set_cpu_frequency(CPUFREQ_DEFAULT);
                 break;
 
diff --git a/apps/playlist.c b/apps/playlist.c
index 2469c0f321..e8f9d48ce0 100644
--- a/apps/playlist.c
+++ b/apps/playlist.c
@@ -2872,14 +2872,14 @@ int playlist_insert_directory(struct playlist_info* playlist,
     context.queue = queue;
     context.count = 0;
 
-    cpu_boost_id(true, CPUBOOSTID_PLAYLIST);
+    cpu_boost(true);
 
     result = playlist_directory_tracksearch(dirname, recurse,
         directory_search_callback, &context);
 
     sync_control(playlist, false);
 
-    cpu_boost_id(false, CPUBOOSTID_PLAYLIST);
+    cpu_boost(false);
 
     display_playlist_count(context.count, count_str);
 
@@ -2941,7 +2941,7 @@ int playlist_insert_playlist(struct playlist_info* playlist, char *filename,
 
     display_playlist_count(count, count_str);
 
-    cpu_boost_id(true, CPUBOOSTID_PLAYLIST);
+    cpu_boost(true);
 
     while ((max = read_line(fd, temp_buf, sizeof(temp_buf))) > 0)
     {
@@ -3000,7 +3000,7 @@ int playlist_insert_playlist(struct playlist_info* playlist, char *filename,
 
     sync_control(playlist, false);
 
-    cpu_boost_id(false, CPUBOOSTID_PLAYLIST);
+    cpu_boost(false);
 
     display_playlist_count(count, count_str);
 
@@ -3347,7 +3347,7 @@ int playlist_save(struct playlist_info* playlist, char *filename)
 
     display_playlist_count(count, str(LANG_PLAYLIST_SAVE_COUNT));
 
-    cpu_boost_id(true, CPUBOOSTID_PLAYLIST);
+    cpu_boost(true);
 
     index = playlist->first_index;
     for (i=0; i<playlist->amount; i++)
@@ -3440,7 +3440,7 @@ int playlist_save(struct playlist_info* playlist, char *filename)
 
     }
 
-    cpu_boost_id(false, CPUBOOSTID_PLAYLIST);
+    cpu_boost(false);
 
     return result;
 }
diff --git a/apps/tagcache.c b/apps/tagcache.c
index dea20393ff..02b8430396 100644
--- a/apps/tagcache.c
+++ b/apps/tagcache.c
@@ -3534,7 +3534,7 @@ void build_tagcache(const char *path)
 
     filenametag_fd = open_tag_fd(&header, tag_filename, false);
     
-    cpu_boost_id(true, CPUBOOSTID_TAGCACHE);
+    cpu_boost(true);
 
     logf("Scanning files...");
     /* Scan for new files. */
@@ -3562,7 +3562,7 @@ void build_tagcache(const char *path)
     if (!ret)
     {
         logf("Aborted.");
-        cpu_boost_id(false, CPUBOOSTID_TAGCACHE);
+        cpu_boost(false);
         return ;
     }
 
@@ -3588,7 +3588,7 @@ void build_tagcache(const char *path)
     }
 #endif
     
-    cpu_boost_id(false, CPUBOOSTID_TAGCACHE);
+    cpu_boost(false);
 }
 
 #ifdef HAVE_TC_RAMCACHE
@@ -3597,7 +3597,7 @@ static void load_ramcache(void)
     if (!hdr)
         return ;
         
-    cpu_boost_id(true, CPUBOOSTID_TAGCACHE);
+    cpu_boost(true);
     
     /* At first we should load the cache (if exists). */
     tc_stat.ramcache = load_tagcache();
@@ -3610,7 +3610,7 @@ static void load_ramcache(void)
         hdr = NULL;
     }
     
-    cpu_boost_id(false, CPUBOOSTID_TAGCACHE);
+    cpu_boost(false);
 }
 
 void tagcache_unload_ramcache(void)
@@ -3656,7 +3656,7 @@ static void tagcache_thread(void)
 
     /* If the previous cache build/update was interrupted, commit
      * the changes first in foreground. */
-    cpu_boost_id(true, CPUBOOSTID_TAGCACHE);
+    cpu_boost(true);
     allocate_tempbuf();
     commit();
     free_tempbuf();
@@ -3674,7 +3674,7 @@ static void tagcache_thread(void)
         allocate_tagcache();
 #endif
     
-    cpu_boost_id(false, CPUBOOSTID_TAGCACHE);
+    cpu_boost(false);
     tc_stat.initialized = true;
     
     /* Don't delay bootup with the header check but do it on background. */
diff --git a/apps/tagtree.c b/apps/tagtree.c
index dbb1b89b18..7f95f559fa 100644
--- a/apps/tagtree.c
+++ b/apps/tagtree.c
@@ -1284,9 +1284,9 @@ int tagtree_load(struct tree_context* c)
         case allsubentries:
         case navibrowse:
             logf("navibrowse...");
-            cpu_boost_id(true, CPUBOOSTID_TAGTREE);
+            cpu_boost(true);
             count = retrieve_entries(c, &tcs, 0, true);
-            cpu_boost_id(false, CPUBOOSTID_TAGTREE);
+            cpu_boost(false);
             break;
         
         default:
@@ -1460,11 +1460,11 @@ bool insert_all_playlist(struct tree_context *c, int position, bool queue)
     int from, to, direction;
     int files_left = c->filesindir;
 
-    cpu_boost_id(true, CPUBOOSTID_TAGTREE);
+    cpu_boost(true);
     if (!tagcache_search(&tcs, tag_filename))
     {
         gui_syncsplash(HZ, true, str(LANG_TAGCACHE_BUSY));
-        cpu_boost_id(false, CPUBOOSTID_TAGTREE);
+        cpu_boost(false);
         return false;
     }
     
@@ -1502,7 +1502,7 @@ bool insert_all_playlist(struct tree_context *c, int position, bool queue)
     }
     playlist_sync(NULL);
     tagcache_search_finish(&tcs);
-    cpu_boost_id(false, CPUBOOSTID_TAGTREE);
+    cpu_boost(false);
     
     return true;
 }
@@ -1606,16 +1606,16 @@ struct tagentry* tagtree_get_entry(struct tree_context *c, int id)
     /* Load the next chunk if necessary. */
     if (realid >= current_entry_count || realid < 0)
     {
-        cpu_boost_id(true, CPUBOOSTID_TAGTREE);
+        cpu_boost(true);
         if (retrieve_entries(c, &tcs2, MAX(0, id - (current_entry_count / 2)),
                              false) < 0)
         {
             logf("retrieve failed");
-            cpu_boost_id(false, CPUBOOSTID_TAGTREE);
+            cpu_boost(false);
             return NULL;
         }
         realid = id - current_offset;
-        cpu_boost_id(false, CPUBOOSTID_TAGTREE);
+        cpu_boost(false);
     }
     
     return &entry[realid];
diff --git a/apps/talk.c b/apps/talk.c
index 107cb72e6e..a8805004d2 100644
--- a/apps/talk.c
+++ b/apps/talk.c
@@ -219,7 +219,7 @@ static void load_voicefile(void)
     /* Do a bitswap as necessary. */
 #if CONFIG_CODEC == SWCODEC
     logf("Bitswapping voice file.");
-    cpu_boost_id(true, CPUBOOSTID_TALK);
+    cpu_boost(true);
     buf = (unsigned char *)(&p_voicefile->index) +
         (p_voicefile->id1_max + p_voicefile->id2_max) * sizeof(struct clip_entry);
     length = file_size - (buf - (unsigned char *) p_voicefile);
@@ -231,7 +231,7 @@ static void load_voicefile(void)
         temp   = ((temp >> 2) & 0x33) | ((temp & 0x33) << 2);
         buf[i] = ((temp >> 1) & 0x55) | ((temp & 0x55) << 1);
     }
-    cpu_boost_id(false, CPUBOOSTID_TALK);
+    cpu_boost(false);
     
 #endif
 
diff --git a/firmware/common/dircache.c b/firmware/common/dircache.c
index 7227704ffc..18039ee038 100644
--- a/firmware/common/dircache.c
+++ b/firmware/common/dircache.c
@@ -549,16 +549,16 @@ static int dircache_do_rebuild(void)
     memset(dircache_cur_path, 0, sizeof(dircache_cur_path));
     dircache_size = sizeof(struct dircache_entry);
 
-    cpu_boost_id(true, CPUBOOSTID_DIRCACHE);
+    cpu_boost(true);
     if (dircache_travel(pdir, dircache_root) < 0)
     {
         logf("dircache_travel failed");
-        cpu_boost_id(false, CPUBOOSTID_DIRCACHE);
+        cpu_boost(false);
         dircache_size = 0;
         dircache_initializing = false;
         return -2;
     }
-    cpu_boost_id(false, CPUBOOSTID_DIRCACHE);
+    cpu_boost(false);
 
     logf("Done, %d KiB used", dircache_size / 1024);
     
diff --git a/firmware/export/system.h b/firmware/export/system.h
index 3ec599d62b..2523a72fb3 100644
--- a/firmware/export/system.h
+++ b/firmware/export/system.h
@@ -60,32 +60,6 @@ void set_cpu_frequency(long frequency);
 void cpu_boost(bool on_off);
 void cpu_idle_mode(bool on_off);
 int get_cpu_boost_counter(void);
-
-#if MEM > 1
-#define CPU_BOOST_TRACKING
-#endif
-
-#ifdef CPU_BOOST_TRACKING
-void cpu_boost_id(bool on_off, char id);
-const char *get_cpu_boost_tracker(void);
-/* CPU boost ID chars, in alphabetical order */
-#define CPUBOOSTID_PLAYBACK_AUDIO 'A'
-#define CPUBOOSTID_TAGTREE 'a'
-#define CPUBOOSTID_BACKLIGHT 'b'
-#define CPUBOOSTID_PLAYBACK_CODEC 'c'
-#define CPUBOOSTID_DIRCACHE 'd'
-#define CPUBOOSTID_MAININIT 'i'
-#define CPUBOOSTID_DEBUGMENU_MANUAL 'm'
-#define CPUBOOSTID_PLAYLIST 'P'
-#define CPUBOOSTID_PCMBUF 'p'
-#define CPUBOOSTID_PCMRECORD 'R'
-#define CPUBOOSTID_TREE 'r'
-#define CPUBOOSTID_TALK 'T'
-#define CPUBOOSTID_TAGCACHE 't'
-#define CPUBOOSTID_PLAYBACK_VOICE 'v'
-#else
-#define cpu_boost_id(on_off,id) cpu_boost(on_off)
-#endif
 #else
 #define FREQ CPU_FREQ
 #define set_cpu_frequency(frequency)
diff --git a/firmware/pcm_record.c b/firmware/pcm_record.c
index bc39c8979a..379adc3a9c 100644
--- a/firmware/pcm_record.c
+++ b/firmware/pcm_record.c
@@ -796,7 +796,7 @@ static void pcmrec_flush(unsigned flush_num)
 
     logf("writing: %d (%d)", num_ready, flush_num);
         
-    cpu_boost_id(true, CPUBOOSTID_PCMRECORD);
+    cpu_boost(true);
 
     for (i=0; i<num_ready; i++)
     {
@@ -844,7 +844,7 @@ static void pcmrec_flush(unsigned flush_num)
     if (rec_fdata.rec_file >= 0)
         fsync(rec_fdata.rec_file);
 
-        cpu_boost_id(false, CPUBOOSTID_PCMRECORD);
+        cpu_boost(false);
 
     if (prio != -1)
     {
diff --git a/firmware/system.c b/firmware/system.c
index a5fae26bc5..2ec9ff7a41 100644
--- a/firmware/system.c
+++ b/firmware/system.c
@@ -34,37 +34,19 @@ long cpu_frequency = CPU_FREQ;
 #ifdef HAVE_ADJUSTABLE_CPU_FREQ
 static int boost_counter = 0;
 static bool cpu_idle = false;
-#ifdef CPU_BOOST_TRACKING
-#define CPU_BOOST_TRACKER_MAX 15
-static char cpu_boost_tracker[CPU_BOOST_TRACKER_MAX+1] = "";
-#endif
 
 int get_cpu_boost_counter(void)
 {
     return boost_counter;
 }
 
-#ifdef CPU_BOOST_TRACKING
-const char *get_cpu_boost_tracker()
-{
-    return cpu_boost_tracker;
-}
-
-void cpu_boost_id(bool on_off, char id)
+void cpu_boost(bool on_off)
 {
     if(on_off)
     {
         /* Boost the frequency if not already boosted */
         if(boost_counter++ == 0)
             set_cpu_frequency(CPUFREQ_MAX);
-
-        /* Add to the boost tracker for debugging */
-        int l = strlen(cpu_boost_tracker);
-        if (l < CPU_BOOST_TRACKER_MAX)
-        {
-            cpu_boost_tracker[l] = id;
-            cpu_boost_tracker[l+1] = '\0';
-        }
     }
     else
     {
@@ -80,26 +62,8 @@ void cpu_boost_id(bool on_off, char id)
         /* Safety measure */
         if(boost_counter < 0)
             boost_counter = 0;
-
-        /* Remove an entry from the boost tracker */
-        int l = strlen(cpu_boost_tracker);
-        while (l >= 0 && cpu_boost_tracker[l] != id)
-            l--;
-        if (cpu_boost_tracker[l] != id)       /* No match found? */
-            l = strlen(cpu_boost_tracker)-1;  /* Just remove last one */
-        while (l < CPU_BOOST_TRACKER_MAX)
-        {
-            cpu_boost_tracker[l] = cpu_boost_tracker[l+1];
-            l++;
-        }
     }
 }
-#endif
-
-void cpu_boost(bool on_off)
-{
-    cpu_boost_id(on_off, '?');
-}
 
 void cpu_idle_mode(bool on_off)
 {
@@ -115,8 +79,8 @@ void cpu_idle_mode(bool on_off)
             set_cpu_frequency(CPUFREQ_NORMAL);
     }
 }
+#endif /* HAVE_ADJUSTABLE_CPU_FREQ */
 
-#endif
 #if CONFIG_CPU == S3C2440
 
 void system_reboot(void) {