[lc-checkins] CVS: linux/mm/comp_cache aux.c,1.26,1.27 proc.c,1.10,1.11

[Rodrigo S. de C. <rc...@us...>]

Update of /cvsroot/linuxcompressed/linux/mm/comp_cache
In directory usw-pr-cvs1:/tmp/cvs-serv29963/mm/comp_cache

Modified Files:
	aux.c proc.c 
Log Message:
Add "Free Space Histogram" section to /proc/comp_cache_stat


Index: aux.c
===================================================================
RCS file: /cvsroot/linuxcompressed/linux/mm/comp_cache/aux.c,v
retrieving revision 1.26
retrieving revision 1.27
diff -C2 -r1.26 -r1.27
*** aux.c	21 May 2002 18:49:06 -0000	1.26
--- aux.c	29 May 2002 13:05:25 -0000	1.27
***************
*** 2,6 ****
   * linux/mm/comp_cache/aux.c
   *
!  * Time-stamp: <2002-05-21 12:34:55 rcastro>
   *  
   * Linux Virtual Memory Compressed Cache
--- 2,6 ----
   * linux/mm/comp_cache/aux.c
   *
!  * Time-stamp: <2002-05-28 17:32:52 rcastro>
   *  
   * Linux Virtual Memory Compressed Cache
***************
*** 21,25 ****
  unsigned int  fragment_hash_bits;
  
! comp_cache_t ** free_space_hash;
  unsigned int free_space_hash_size;
  unsigned int free_space_interval;
--- 21,25 ----
  unsigned int  fragment_hash_bits;
  
! static comp_cache_t ** free_space_hash;
  unsigned int free_space_hash_size;
  unsigned int free_space_interval;
***************
*** 162,165 ****
--- 162,181 ----
  
  	fragment_hash_used--;
+ }
+ 
+ unsigned long
+ free_space_count(int index) {
+ 	comp_cache_t * comp_page;
+ 	unsigned long total;
+ 
+ 	if (index < 0)
+ 		BUG();
+ 
+ 	if (index >= free_space_hash_size)
+ 		BUG();
+ 	
+ 	for (comp_page = free_space_hash[index], total = 0; comp_page; comp_page = comp_page->next_hash, total++);
+ 	
+ 	return total;
  }
  

Index: proc.c
===================================================================
RCS file: /cvsroot/linuxcompressed/linux/mm/comp_cache/proc.c,v
retrieving revision 1.10
retrieving revision 1.11
diff -C2 -r1.10 -r1.11
*** proc.c	23 May 2002 21:25:33 -0000	1.10
--- proc.c	29 May 2002 13:05:26 -0000	1.11
***************
*** 2,6 ****
   * linux/mm/comp_cache/proc.c
   *
!  * Time-stamp: <2002-05-23 18:00:34 rcastro>
   *  
   * Linux Virtual Memory Compressed Cache
--- 2,6 ----
   * linux/mm/comp_cache/proc.c
   *
!  * Time-stamp: <2002-05-28 17:56:39 rcastro>
   *  
   * Linux Virtual Memory Compressed Cache
***************
*** 237,241 ****
  print_comp_cache_stats(unsigned short alg_idx, char * page, int * length)
  {
! 	unsigned int compression_ratio, discard_ratio;
  	unsigned int mean_size, mean_comp_cycles, mean_decomp_cycles;
  	unsigned long total_comp_pages, total_wout_pages, total_decomp_pages, total_faultin_pages;
--- 237,241 ----
  print_comp_cache_stats(unsigned short alg_idx, char * page, int * length)
  {
! 	unsigned int compression_ratio, discard_ratio, i;
  	unsigned int mean_size, mean_comp_cycles, mean_decomp_cycles;
  	unsigned long total_comp_pages, total_wout_pages, total_decomp_pages, total_faultin_pages;
***************
*** 314,317 ****
--- 314,335 ----
  			   stats->decomp_cycles_max,
  			   mean_decomp_cycles);
+ 	
+ 	*length += sprintf(page + *length,
+ 			   "Free Space Histogram\n"
+ 			   "   Zero:             %8lu\n",
+ 			   free_space_count(0));
+ 
+ 	for (i = 1; i < free_space_hash_size - 1; i += 2) {
+ 		*length += sprintf(page + *length,
+ 				   "   %4d - %4d:      %8lu\n",
+ 				   (i+1)*100-200?:1, (i+1)*100,
+ 				   free_space_count(i) + free_space_count(i+1));
+ 	}
+ 
+ 	*length += sprintf(page + *length,
+ 			   "   Page Size:        %8lu\n",
+ 			   free_space_count(free_space_hash_size - 1));
+ 
+ 				   
  }