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¿µ¹®Ç¥Áظí Navigation Timing
Çѱ۳»¿ë¿ä¾à »ç¿ëÀÚ´Â ºê¶ó¿ìÀú¸¦ ÅëÇØ À¥ ¹®¼­¸¦ ¿äûÇÏ°í ´Ù¿î·ÎµåÇÏ°í À̸¦ ÆĽÌÇϰųª ·»´õ¸µÇÏ´Â µîÀÇ ÀÏ·ÃÀÇ °úÁ¤À» °ÅÃÄ ¿Ï¼ºµÈ ÆäÀÌÁö¸¦ È®ÀÎÇÏ°Ô µÈ´Ù. ±×·¯¹Ç·Î »ç¿ëÀÚ ÀÔÀå¿¡¼­´Â ÀÌó·³ ÆäÀÌÁö¸¦ ºÒ·¯¿À´Â ·Îµù °úÁ¤¿¡¼­ÀÇ ¼Ò¿ä ½Ã°£ÀÌ Áß¿äÇÑ À¥ ¼º´ÉÀ¸·Î ÀÎ½ÄµÇ°Ô µÈ´Ù.
ÀÌÁß¿¡¼­µµ »ç¿ëÀÚ ´ë±â ½Ã°£(user latency)Àº À¥ ¾ÖÇø®ÄÉÀ̼ǿ¡ ´ëÇÑ Áß¿äÇÑ Ç°Áú º¥Ä¡¸¶Å© Ç׸ñÀÌ´Ù. ÀϹÝÀûÀÎ ½ºÅ©¸³Æ® ±â¹Ý ¸ÞÄ¿´ÏÁòµéÀ» ÅëÇØ ¾ÖÇø®ÄÉÀÌ¼Ç ³»ÀÇ »ç¿ëÀÚ ´ë±â ½Ã°£ ÃøÁ¤À» À§ÇÑ °èÃø ¹æ¹ýµéÀ» Á¦°øÇÒ ¼ö ÀÖÁö¸¸, ´ëºÎºÐ Á¾´Ü °£ ´ë±â ½Ã°£(end-to-end latency)¿¡ ´ëÇÑ ¿Ïº®ÇÑ ±×¸²À» Á¦°øÇÏÁö´Â ¸øÇÑ´Ù.
»ç¿ëÀÚ °æÇè°ú °ü·ÃÇÑ Àüü °æÇè¿¡ ´ëÇÑ ÇÊ¿ä¿¡ ´ëÀÀÇϱâ À§ÇØ, º» Ç¥ÁØ¿¡¼­´Â PerformanceTiming ÀÎÅÍÆäÀ̽º¸¦ Á¤ÀÇÇÑ´Ù. ÀÌ ÀÎÅÍÆäÀ̽º¸¦ ÅëÇØ À¥ ¾ÖÇø®ÄÉÀÌ¼Ç ³»¿¡¼­ ¿ÏÀüÇÑ Å¬¶óÀ̾ðÆ® Ãø Áö¿¬ ½Ã°£ ÃøÁ¤ÀÌ °¡´ÉÇØÁú °ÍÀÌ´Ù.
¿µ¹®³»¿ë¿ä¾à User latency is an important quality benchmark for Web Applications. While script-based mechanisms can provide comprehensive instrumentation for user latency measurements within an application, in many cases, they are unable to provide a complete end-to-end latency picture.
To address the need for complete information of user experiences, this document introduces e performance timing interface. This interface allows JavaScript mechanisms to provide complete client-side latency measurements within applications. With the proposed interface, the previous example can be modified to measure a user's perceived page load time.
The interface provided by this work is not intended to be used as any sort of performance benchmark for user agents.
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