On 16 Sep 2012, at 21:59, Camillo Bruni <camillobr...@gmail.com> wrote:
>>> I assume that the overhead only occurs for small files... >>> >>> ZnClient new >>> signalProgress: true; >>> systemPolicy; >>> beOneShot; >>> url: 'http://smalltalkhub.com/mc/estebanlm/Voyage/main?format=raw'; >>> get. >>> >>> with progress 2.5secs without, 57ms.. :/ well might be that the server >>> responds with an incomplete header or so... >> >> another remark with signalProgress the time to run highly varies, 250ms - >> 2500ms. >> whereas without progress notification it stays <140ms > > the culprit IMO is ZnClient>>#executeWithRetriesRemaining: which does a > on: Exception do:[ ... retry ]. so that means on an HTTPProgress you > initiate a retry? (and wait for retryDelay), AUCH! :D Yeah, that is probably it, and that is horrible, terrible. .. ;-) In #executeWithTimeout a special #exceptionSetForIfFail is used to avoid that, if I remember correctly. Tomorrow, I'll have another look, with a fresh head. Thx again! -- Sven Van Caekenberghe http://stfx.eu Smalltalk is the Red Pill
