optimize writev method

[lxzan]

No description provided.

[codecov]

Codecov Report

Attention: 1 lines in your changes are missing coverage. Please review.

Comparison is base (661f034) 99.65% compared to head (f8ab89b) 99.83%.
Report is 2 commits behind head on master.

❗ Current head f8ab89b differs from pull request most recent head 8efe3c8. Consider uploading reports for the commit 8efe3c8 to get more accurate results

Files	Patch %	Lines
compress.go	91.66%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #76      +/-   ##
==========================================
+ Coverage   99.65%   99.83%   +0.17%     
==========================================
  Files          15       16       +1     
  Lines        1746     1777      +31     
==========================================
+ Hits         1740     1774      +34     
+ Misses          4        2       -2     
+ Partials        2        1       -1     

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