Changes between Version 2 and Version 3 of Performance/Sep2011

Timestamp:

2011-09-26T05:01:56Z (14 years ago)

Author:

warner

Comment:

oops, all MDMF test files were k=3. Need proper results.

Performance/Sep2011

@@ -23 +23 @@
 == MDMF (trunk) ==
 
-MDMF is fast! Trunk downloads 1MB/10MB/100MB MDMF files at around 4MBps. The
-download speed seems unaffected by k (from 1 to 60). Partial reads take the
-expected amount of time: O(data_read), slightly quantized near the 128KiB
-segment size.
+MDMF is fast! Trunk downloads 1MB/10MB/100MB MDMF files at around 4MBps.
+~~The download speed seems unaffected by k (from 1 to 60)~~. Partial
+reads take the expected amount of time: O(data_read), slightly quantized
+near the 128KiB segment size.
+
+(update 25-Sep: the test harness appears to have been flawed, and all
+MDMF files were actually k=3. A new test is in the works to get proper
+data on how MDMF read speed varies with k).
 
 * MDMF read versus k, 100MB attachment:MDMF-100MB-vs-k.png (timing5.out)
@@ -74 +78 @@
 * use unencrypted HTTP for share reads
 
-readv() is the least-work/most-promising, since MDMF has readv() and achieves
-high speeds. First step is to do whatever MDMF is doing
+readv() is the least-work/most-promising, ~~since MDMF has readv() and
+achieves high speeds. First step is to do whatever MDMF is doing~~
 
 == Future Tests ==