DTrace Firefox load times for http://blogs.sun.com/jonathan Hard - Reload ================ bash-3.00$ browserspy_time_short.d Tracing Browser Network Activity... Hit Ctrl-C to end. ^C PROBE STATS: TYPE TOTAL COUNT DNS_REQ Network Requests - Done 14 DNS_REQ Network Requests - Started 14 DNS_LOAD Lookups - Network and Cache 25 TYPE TOTAL COUNT URI Network Requests - Done 23 URI Network Requests - Started 23 IMAGE_REQ Network Requests - Done 53 IMAGE_REQ Network Requests - Started 53 IMAGE_LOAD Image Loads - Network and Cache 182 Browser DNS lookup requests, PID UID STATUS COUNT AVG(msec) SUM(msec) IP HOST 27359 65535 1 1 0 0 72.5.124.61 www.sun.com 27359 65535 1 1 0 0 65.214.39.152 www.bloglines.com 27359 65535 1 1 0 0 66.249.93.91 sb.google.com 27359 65535 1 1 0 0 66.249.93.99 www.google.com 27359 65535 1 1 0 0 213.200.109.9 images.cafepress.com 27359 65535 1 1 10029 10029 64.78.155.105 www.newsgator.com 27359 65535 1 1 10035 10035 145.97.39.156 upload.wikimedia.org 27359 65535 1 1 10038 10038 159.134.196.118 us.i1.yimg.com 27359 65535 1 1 10045 10045 72.32.62.117 www.37signals.com 27359 65535 1 1 10052 10052 64.125.132.39 weblogs.java.net 27359 65535 1 1 10153 10153 216.14.208.10 russian-crafts.com 27359 65535 1 1 10207 10207 204.16.104.2 marketing.openoffice.org 27359 65535 1 1 10287 10287 205.219.188.135 www.netstate.com 27359 65535 1 1 10492 10492 208.106.144.101 www.gobuffaloniagara.com URI structure: ://:@://.;?# Browser requests by scheme, PID UID TYPE COUNT AVG(msec) SUM(msec) SCHEME 27359 65535 IMAGE_REQ 1 0 0 https 27359 65535 IMAGE_REQ 52 240 12495 http 27359 65535 URI 23 1296 29829 http Browser requests by content type, PID UID TYPE COUNT AVG(msec) SUM(msec) CONTENT_TYPE 27359 65535 IMAGE_REQ 1 15 15 text/html 27359 65535 IMAGE_REQ 32 46 1475 image/gif 27359 65535 IMAGE_REQ 5 432 2160 image/png 27359 65535 IMAGE_REQ 15 589 8844 image/jpeg 27359 65535 URI 23 1296 29829 text/html Browser requests by file extension, PID UID TYPE COUNT AVG(msec) SUM(msec) FILE_EXT 27359 65535 IMAGE_REQ 1 31 31 JPG 27359 65535 URI 8 36 295 html 27359 65535 IMAGE_REQ 5 179 897 27359 65535 IMAGE_REQ 29 50 1474 gif 27359 65535 IMAGE_REQ 5 432 2160 png 27359 65535 URI 12 484 5812 jsp 27359 65535 IMAGE_REQ 13 610 7931 jpg 27359 65535 URI 3 7907 23721 Browser requests by host, PID UID TYPE COUNT AVG(msec) SUM(msec) HOST 27359 65535 IMAGE_REQ 1 0 0 www.bloglines.com 27359 65535 IMAGE_REQ 1 0 0 sunglobal.112.2o7.net 27359 65535 IMAGE_REQ 1 0 0 glassfish-theme.dev.java.net 27359 65535 IMAGE_REQ 1 0 0 us.i1.yimg.com 27359 65535 IMAGE_REQ 1 0 0 www.sun.com 27359 65535 IMAGE_REQ 1 0 0 www.newsgator.com 27359 65535 IMAGE_REQ 1 0 0 static.technorati.com 27359 65535 IMAGE_REQ 2 0 1 sunvideos.112.2o7.net 27359 65535 IMAGE_REQ 6 0 1 metrics.feedroom.com 27359 65535 IMAGE_REQ 1 15 15 feedroom.speedera.net 27359 65535 IMAGE_REQ 1 31 31 images.cafepress.com 27359 65535 IMAGE_REQ 1 50 50 tbn0.google.com 27359 65535 IMAGE_REQ 3 48 144 upload.wikimedia.org 27359 65535 IMAGE_REQ 1 183 183 russian-crafts.com 27359 65535 IMAGE_REQ 1 242 242 www.google.com 27359 65535 IMAGE_REQ 1 437 437 www.37signals.com 27359 65535 IMAGE_REQ 1 458 458 www.netstate.com 27359 65535 IMAGE_REQ 1 662 662 www.gobuffaloniagara.com 27359 65535 IMAGE_REQ 1 748 748 weblogs.java.net 27359 65535 IMAGE_REQ 1 845 845 photos.sun.com 27359 65535 IMAGE_REQ 1 1378 1378 marketing.openoffice.org 27359 65535 IMAGE_REQ 24 303 7289 blogs.sun.com 27359 65535 URI 22 335 7389 sunfeedroom.sun.com 27359 65535 URI 1 22439 22439 blogs.sun.com DTrace Firefox load times for http://blogs.sun.com/jonathan Standard Reload ================ bash-3.00$ browserspy_time_short.d Tracing Browser Network Activity... Hit Ctrl-C to end. ^C PROBE STATS: TYPE TOTAL COUNT DNS_REQ Network Requests - Done 11 DNS_REQ Network Requests - Started 11 DNS_LOAD Lookups - Network and Cache 25 TYPE TOTAL COUNT IMAGE_REQ Network Requests - Done 16 IMAGE_REQ Network Requests - Started 16 URI Network Requests - Done 23 URI Network Requests - Started 23 IMAGE_LOAD Image Loads - Network and Cache 172 Browser DNS lookup requests, PID UID STATUS COUNT AVG(msec) SUM(msec) IP HOST 27359 65535 1 1 0 0 72.5.124.60 photos.sun.com 27359 65535 1 1 0 0 209.10.25.201 sunfeedroom.sun.com 27359 65535 1 1 0 0 208.66.64.210 static.technorati.com 27359 65535 1 1 0 0 209.10.25.215 metrics.feedroom.com 27359 65535 1 1 0 0 72.5.124.61 www.sun.com 27359 65535 1 1 0 0 204.16.104.198 glassfish-theme.dev.java.net 27359 65535 1 1 0 0 213.200.109.9 images.cafepress.com 27359 65535 1 1 0 0 216.52.17.134 sunvideos.112.2o7.net 27359 65535 1 1 0 0 159.134.196.118 feedroom.speedera.net 27359 65535 1 1 0 0 216.52.17.206 sunglobal.112.2o7.net 27359 65535 1 1 0 0 72.5.124.56 blogs.sun.com URI structure: ://:@://.;?# Browser requests by scheme, PID UID TYPE COUNT AVG(msec) SUM(msec) SCHEME 27359 65535 IMAGE_REQ 1 0 0 https 27359 65535 IMAGE_REQ 15 31 469 http 27359 65535 URI 23 578 13302 http Browser requests by content type, PID UID TYPE COUNT AVG(msec) SUM(msec) CONTENT_TYPE 27359 65535 IMAGE_REQ 11 0 4 image/gif 27359 65535 IMAGE_REQ 2 7 15 text/html 27359 65535 IMAGE_REQ 3 149 449 image/jpeg 27359 65535 URI 23 578 13302 text/html Browser requests by file extension, PID UID TYPE COUNT AVG(msec) SUM(msec) FILE_EXT 27359 65535 IMAGE_REQ 8 0 2 gif 27359 65535 IMAGE_REQ 2 7 15 jpg 27359 65535 IMAGE_REQ 1 98 98 JPG 27359 65535 URI 8 35 284 html 27359 65535 IMAGE_REQ 5 70 353 27359 65535 URI 12 398 4781 jsp 27359 65535 URI 3 2745 8236 Browser requests by host, PID UID TYPE COUNT AVG(msec) SUM(msec) HOST 27359 65535 IMAGE_REQ 1 0 0 blogs.sun.com 27359 65535 IMAGE_REQ 1 0 0 sunglobal.112.2o7.net 27359 65535 IMAGE_REQ 1 0 0 glassfish-theme.dev.java.net 27359 65535 IMAGE_REQ 2 0 1 sunvideos.112.2o7.net 27359 65535 IMAGE_REQ 1 1 1 tbn0.google.com 27359 65535 IMAGE_REQ 6 0 2 metrics.feedroom.com 27359 65535 IMAGE_REQ 2 7 15 feedroom.speedera.net 27359 65535 IMAGE_REQ 1 98 98 images.cafepress.com 27359 65535 IMAGE_REQ 1 350 350 photos.sun.com 27359 65535 URI 22 263 5802 sunfeedroom.sun.com 27359 65535 URI 1 7500 7500 blogs.sun.com bash-3.00$