[performance] bulk create very slow when logging enabled

[zxdvd]

GORM Playground Link

go-gorm/playground#1

Description

Bulk create (200 records) is very slow due to logging. The pprof shows following result:

(pprof) top -cum
Showing nodes accounting for 370ms, 59.68% of 620ms total
Showing top 10 nodes out of 63
      flat  flat%   sum%        cum   cum%
         0     0%     0%      460ms 74.19%  gorm.io/gorm.(*DB).Create
         0     0%     0%      460ms 74.19%  gorm.io/gorm.(*processor).Execute
         0     0%     0%      460ms 74.19%  gormtest.TestBulkCreate
         0     0%     0%      460ms 74.19%  testing.tRunner
         0     0%     0%      450ms 72.58%  gorm.io/driver/postgres.Dialector.Explain
         0     0%     0%      450ms 72.58%  gorm.io/gorm.(*processor).Execute.func1
         0     0%     0%      450ms 72.58%  gorm.io/gorm/logger.ExplainSQL
         0     0%     0%      450ms 72.58%  gorm.io/gorm/logger.logger.Trace
         0     0%     0%      450ms 72.58%  strings.Replace
     370ms 59.68% 59.68%      370ms 59.68%  indexbody

The Replace in ExplainSQL took a long time for long string.

[github-actions]

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