diff options
| -rw-r--r-- | src/rabbit_variable_queue.erl | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/src/rabbit_variable_queue.erl b/src/rabbit_variable_queue.erl index de1fdbf962..e408029877 100644 --- a/src/rabbit_variable_queue.erl +++ b/src/rabbit_variable_queue.erl @@ -178,12 +178,12 @@ %% (betas+gammas+delta)/(target_ram_count+betas+gammas+delta). I.e. as %% the target_ram_count shrinks to 0, so must betas and gammas. %% -%% The conversion of betas to gammas is done in batches of at least -%% ?IO_BATCH_SIZE. This value should not be too small, otherwise the -%% frequent operations on the queues of q2 and q3 will not be -%% effectively amortised (switching the direction of queue access -%% defeats amortisation). Note that there is a natural upper bound due -%% to credit_flow limits on the alpha to beta conversion. +%% The conversion of betas to deltas is done if there are at least +%% ?IO_BATCH_SIZE betas in q2 & q3. This value should not be too small, +%% otherwise the frequent operations on the queues of q2 and q3 will not be +%% effectively amortised (switching the direction of queue access defeats +%% amortisation). Note that there is a natural upper bound due to credit_flow +%% limits on the alpha to beta conversion. %% %% The conversion from alphas to betas is chunked due to the %% credit_flow limits of the msg_store. This further smooths the |