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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸°úÇÐȸ ³í¹®Áö > Á¤º¸°úÇÐȸ ³í¹®Áö C : ÄÄÇ»ÆÃÀÇ ½ÇÁ¦

Á¤º¸°úÇÐȸ ³í¹®Áö C : ÄÄÇ»ÆÃÀÇ ½ÇÁ¦

Current Result Document :

ÇѱÛÁ¦¸ñ(Korean Title) ¾Èµå·ÎÀÌµå ½Ã½ºÅÛ¿¡ zRAM Àû¿ë¿¡ ´ëÇÑ ¼º´É ºÐ¼®
¿µ¹®Á¦¸ñ(English Title) Performance Analysis of Applying zRAM to Android System
ÀúÀÚ(Author) ÀÓ»ó¼·   ÀÌÄ¡¿µ   À¯Çõ   Sangsub Lim   Chiyoung Lee   Chunk Yoo  
¿ø¹®¼ö·Ïó(Citation) VOL 20 NO. 03 PP. 0143 ~ 0152 (2014. 03)
Çѱ۳»¿ë
(Korean Abstract)
¾Èµå·ÎÀÌµå ½Ã½ºÅÛÀº NANDÇ÷¡½Ã ¸Þ¸ð¸®¸¦ ÀúÀå¸Åü·Î »ç¿ëÇϱ⠶§¹®¿¡ ½º¿Ò(Swap)±â´ÉÀ» Áö¿øÇÏÁö ¾Ê´Â´Ù. NAND Ç÷¡½Ã ¸Þ¸ð¸®´Â ³·Àº »èÁ¦ ¼º´É°ú µ¤¾î¾²±â ±â´ÉÀÇ ºÎÀç·Î ÀÎÇØ ºó¹øÇÑ µ¥ÀÌÅÍ ±³È¯¿¡ Ãë¾àÇÏ´Ù. ¶ÇÇÑ, ÀæÀº »èÁ¦¿Í ¾²±â ¿¬»êÀº, NAND Ç÷¡½Ã ¸Þ¸ð¸®ÀÇ ¼ö¸íÀ» ´ÜÃà½ÃŲ´Ù. ½º¿ÒÀº »ç¿ë °¡´ÉÇÑ ¸Þ¸ð¸® ¾çÀÇ Áõ°¡¸¦ À§ÇØ ºó¹øÇÑ ½º¿Ò-ÀÎ/¾Æ¿ôÀ» ¹ß»ý½ÃÅ°±â ¶§¹®¿¡ NAND Ç÷¡½Ã ¸Þ¸ð¸®¿¡ ÀûÇÕÇÏÁö ¾Ê´Ù. µû¶ó¼­, º» ³í¹®¿¡¼­´Â ¾Èµå·ÎÀÌµå ½Ã½ºÅÛ¿¡¼­ÀÇ ½º¿Ò ±â´É Á¦°øÀ» À§ÇØ NAND Ç÷¡½Ã¿Í °°Àº ¿ÜºÎ ÀúÀå¸ÅüÀÇ »ç¿ë ¾øÀÌ RAMÀÇ ÀÏÁ¤ºÎºÐÀ» ½º¿Ò ÀúÀå¼Ò·Î »ç¿ëÇÏ´Â zRAMÀ» ±¸ÇöÇÑ´Ù. ¶ÇÇÑ, ´ÜÀÏ ¹× ¸ÖƼ Å×½ºÅ· ȯ°æ¿¡¼­ ±âÁ¸ ¾Èµå·ÎÀÌµå ½Ã½ºÅÛÀÇ non-Swap ¹æ½Ä°ú ºñ±³ ½ÇÇèÇÑ´Ù. À̸¦ ÅëÇØ, °¢ ÇÁ·Î¼¼½º ´ç °¡¿ë ¸Þ¸ð¸®¾çÀÇ Áõ°¡¿Í ¸Þ¸ð¸® ºÎÁ·À¸·Î ÀÎÇÑ ÇÁ·Î¼¼½ºÀÇ Kill countÀÇ °¨¼Ò¸¦ º¸ÀδÙ.
¿µ¹®³»¿ë
(English Abstract)
Android for embedded systems does not support a swap mechanism because Android systems use NAND flash memory for a storage. The NAND flash memory has low performance of erase operation and the absence of rewrite operation so that it is not suitable for frequent data replacement, such as swap. In addition, frequent write and erase operations reduce the life time of the NAND flash memory. Thus, swap is inappropriate for NAND flash memory because it causes frequent swap-in/out when the system memory is shortage. Therefore, this paper implements zRAM for the Android system that uses main memory (RAM) for a swap storage without an external storage such as NAND flash memory. Moreover, this paper presents the available memory size of each process and the number of killed processes, through comparison with the non-swap mechanism of the previous Android.
Å°¿öµå(Keyword) ¾Èµå·ÎÀÌµå ¸Þ¸ð¸® °ü¸®±â¹ý   zRAM   ½º¿Ò   LMK (Low Memory Killer)   android memory management   zRAM   swap   low memory killer  
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